Isotopes of radon: Difference between revisions
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! <br />isotopic mass (u)<br /> |
! <br />isotopic mass (u)<br /> |
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! rowspan="2" | half-life |
! rowspan="2" | half-life |
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! rowspan="2" | decay<br>mode(s)<ref>http://www.nucleonica.net/unc.aspx</ref><ref group="n">Abbreviations:<br>IT: [[Isomeric transition]]</ref> |
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! rowspan="2" | daughter<br>isotope(s) |
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! rowspan="2" | nuclear<br />spin |
! rowspan="2" | nuclear<br />spin |
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! rowspan="2" | representative<br />isotopic<br />composition<br />(mole fraction) |
! rowspan="2" | representative<br />isotopic<br />composition<br />(mole fraction) |
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Line 21: | Line 23: | ||
| 195.00544(5) |
| 195.00544(5) |
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| 6 ms |
| 6 ms |
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| 3/2-# |
| 3/2-# |
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Line 29: | Line 33: | ||
| colspan="3" style="text-indent:2em" | 50(50) keV |
| colspan="3" style="text-indent:2em" | 50(50) keV |
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| 6 ms |
| 6 ms |
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| 13/2+# |
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| |
| |
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| |
| |
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| 13/2+# |
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|- |
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| <sup>196</sup>Rn |
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| |
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| style="text-align:right" | 86 |
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| style="text-align:right" | 110 |
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| 196.002115(16) |
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| 4.7(11) ms<br>[4.4(+13-9) ms] |
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| 0+ |
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| |
| |
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| |
| |
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|- |
|- |
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| <sup> |
| rowspan=2|<sup>196</sup>Rn |
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| rowspan=2| |
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| |
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| style="text-align:right" | 86 |
| rowspan=2|style="text-align:right" | 86 |
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| style="text-align:right" | |
| rowspan=2|style="text-align:right" | 110 |
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| rowspan=2|196.002115(16) |
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| 197.00158(7) |
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| |
| rowspan=2|4.7(11) ms<br>[4.4(+13-9) ms] |
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| [[alpha decay|α]] |
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| 3/2-# |
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| <sup>192</sup>Po |
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| |
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| rowspan=2|0+ |
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| |
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| rowspan=2| |
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| rowspan=2| |
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|- |
|- |
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| [[beta decay|β<sup>+</sup>]] (rare) |
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| <sup>196</sup>At |
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| |
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| colspan="3" style="text-indent:2em" | 200(60)# keV |
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| 21(5) ms<br>[19(+8-4) ms] |
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| (13/2+) |
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| |
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|- |
|- |
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| <sup> |
| rowspan=2|<sup>197</sup>Rn |
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| rowspan=2| |
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| |
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| style="text-align:right" | 86 |
| rowspan=2|style="text-align:right" | 86 |
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| style="text-align:right" | |
| rowspan=2|style="text-align:right" | 111 |
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| 197. |
| rowspan=2|197.00158(7) |
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| 65( |
| rowspan=2|66(16) ms<br>[65(+25-14) ms] |
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| |
| α |
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| <sup>193</sup>Po |
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| |
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| rowspan=2|3/2-# |
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| |
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| rowspan=2| |
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| rowspan=2| |
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|- |
|- |
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| <sup> |
| β<sup>+</sup> (rare) |
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| <sup>193</sup>At |
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| |
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| style="text-align:right" | 86 |
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| style="text-align:right" | 113 |
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| 198.99837(7) |
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| 620(30) ms |
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| 3/2-# |
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| |
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| |
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|- |
|- |
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| style="text-indent:1em" | <sup> |
| rowspan=2 style="text-indent:1em" | <sup>197m</sup>Rn |
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| rowspan=2| |
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| |
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| colspan="3" style="text-indent:2em" | |
| rowspan=2 colspan="3" style="text-indent:2em" | 200(60)# keV |
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| rowspan=2|21(5) ms<br>[19(+8-4) ms] |
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| 320(20) ms |
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| |
| α |
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| <sup>193</sup>Po |
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| |
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| rowspan=2|(13/2+) |
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| |
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| rowspan=2| |
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| rowspan=2| |
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|- |
|- |
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| <sup> |
| β<sup>+</sup> (rare) |
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| <sup>197</sup>At |
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| |
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|- |
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| style="text-align:right" | 86 |
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| rowspan=2|<sup>198</sup>Rn |
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| style="text-align:right" | 114 |
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| rowspan=2| |
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| 199.995699(14) |
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| rowspan=2 style="text-align:right" | 86 |
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| 0.96(3) s |
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| rowspan=2 style="text-align:right" | 112 |
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| 0+ |
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| rowspan=2|197.998679(14) |
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| rowspan=2|65(3) ms |
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| α (99%) |
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| <sup>194</sup>Po |
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| rowspan=2|0+ |
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| rowspan=2| |
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| rowspan=2| |
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|- |
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| β<sup>+</sup> (1%) |
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| <sup>198</sup>At |
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|- |
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| rowspan=2|<sup>199</sup>Rn |
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| rowspan=2| |
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| rowspan=2 style="text-align:right" | 86 |
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| rowspan=2 style="text-align:right" | 113 |
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| rowspan=2|198.99837(7) |
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| rowspan=2|620(30) ms |
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| α (94%) |
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| <sup>195</sup>Po |
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| rowspan=2|3/2-# |
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| rowspan=2| |
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| rowspan=2| |
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|- |
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| β<sup>+</sup> (6%) |
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| <sup>195</sup>At |
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|- |
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| rowspan=2 style="text-indent:1em" | <sup>199m</sup>Rn |
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| rowspan=2| |
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| rowspan=2 colspan="3" style="text-indent:2em" | 180(70) keV |
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| rowspan=2|320(20) ms |
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| α (97%) |
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| <sup>195</sup>Po |
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| rowspan=2|13/2+# |
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| rowspan=2| |
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| rowspan=2| |
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|- |
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| β<sup>+</sup> (3%) |
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| <sup>199</sup>At |
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|- |
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| rowspan=2|<sup>200</sup>Rn |
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| rowspan=2| |
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| rowspan=2 style="text-align:right" | 86 |
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| rowspan=2 style="text-align:right" | 114 |
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| rowspan=2|199.995699(14) |
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| rowspan=2|0.96(3) s |
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| α (98%) |
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| <sup>196</sup>Po |
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| rowspan=2|0+ |
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| rowspan=2| |
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| rowspan=2| |
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|- |
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| β<sup>+</sup> (2%) |
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| <sup>200</sup>At |
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|- |
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| rowspan=2|<sup>201</sup>Rn |
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| rowspan=2| |
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| rowspan=2 style="text-align:right" | 86 |
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| rowspan=2 style="text-align:right" | 115 |
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| rowspan=2|200.99563(8) |
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| rowspan=2|7.0(4) s |
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| α (80%) |
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| <sup>197</sup>Po |
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| rowspan=2|(3/2-) |
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| rowspan=2| |
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| rowspan=2| |
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|- |
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| β<sup>+</sup> (20%) |
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| <sup>201</sup>At |
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|- |
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| rowspan=3 style="text-indent:1em" | <sup>201m</sup>Rn |
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| rowspan=3| |
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| rowspan=3 colspan="3" style="text-indent:2em" | 280(90)# keV |
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| rowspan=3|3.8(1) s |
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| α (90%) |
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| <sup>197</sup>Po |
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| rowspan=3|(13/2+) |
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| rowspan=3| |
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| rowspan=3| |
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|- |
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| β<sup>+</sup> (10%) |
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| <sup>201</sup>At |
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|- |
|- |
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| [[Isomeric transition|IT]] (<1%) |
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| <sup>201</sup>Rn |
| <sup>201</sup>Rn |
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| |
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| style="text-align:right" | 86 |
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| style="text-align:right" | 115 |
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| 200.99563(8) |
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| 7.0(4) s |
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| (3/2-) |
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| |
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|- |
|- |
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| |
| rowspan=2|<sup>202</sup>Rn |
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| rowspan=2| |
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| |
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| |
| rowspan=2 style="text-align:right" | 86 |
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| rowspan=2 style="text-align:right" | 116 |
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| 3.8(1) s |
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| rowspan=2|201.993263(19) |
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| (13/2+) |
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| rowspan=2|9.94(18) s |
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| |
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| α (85%) |
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| |
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| <sup>198</sup>Po |
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| rowspan=2|0+ |
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| rowspan=2| |
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| rowspan=2| |
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|- |
|- |
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| <sup> |
| β<sup>+</sup> (15%) |
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| <sup>202</sup>At |
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| |
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| style="text-align:right" | 86 |
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| style="text-align:right" | 116 |
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| 201.993263(19) |
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| 9.94(18) s |
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| 0+ |
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| |
|||
| |
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|- |
|- |
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| <sup>203</sup>Rn |
| rowspan=2|<sup>203</sup>Rn |
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| rowspan=2| |
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| |
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| style="text-align:right" | 86 |
| rowspan=2 style="text-align:right" | 86 |
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| style="text-align:right" | 117 |
| rowspan=2 style="text-align:right" | 117 |
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| 202.993387(25) |
| rowspan=2|202.993387(25) |
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| 44.2(16) s |
| rowspan=2|44.2(16) s |
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| ( |
| α (66%) |
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| <sup>199</sup>Po |
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| |
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| rowspan=2|(3/2-) |
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| |
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| rowspan=2| |
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| rowspan=2| |
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|- |
|- |
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| |
| β<sup>+</sup> (34%) |
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| <sup>203</sup>At |
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| |
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| colspan="3" style="text-indent:2em" | 363(4) keV |
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| 26.7(5) s |
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| 13/2(+) |
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| |
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| |
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|- |
|- |
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| <sup> |
| rowspan=2 style="text-indent:1em" | <sup>203m</sup>Rn |
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| rowspan=2| |
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| |
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| style="text- |
| rowspan=2 colspan="3" style="text-indent:2em" | 363(4) keV |
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| rowspan=2|26.7(5) s |
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| style="text-align:right" | 118 |
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| |
| α (80%) |
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| <sup>199</sup>Po |
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| 1.17(18) min |
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| rowspan=2|13/2(+) |
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| 0+ |
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| rowspan=2| |
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| |
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| rowspan=2| |
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| |
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|- |
|- |
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| <sup> |
| β<sup>+</sup> (20%) |
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| <sup>203</sup>At |
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| |
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| style="text-align:right" | 86 |
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| style="text-align:right" | 119 |
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| 204.99172(5) |
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| 170(4) s |
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| 5/2- |
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| |
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| |
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|- |
|- |
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| <sup> |
| rowspan=2|<sup>204</sup>Rn |
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| rowspan=2| |
|||
| |
|||
| style="text-align:right" | 86 |
| rowspan=2 style="text-align:right" | 86 |
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| style="text-align:right" | |
| rowspan=2 style="text-align:right" | 118 |
||
| |
| rowspan=2|203.991429(16) |
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| |
| rowspan=2|1.17(18) min |
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| α (73%) |
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| 0+ |
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| <sup>200</sup>Po |
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| |
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| rowspan=2|0+ |
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| |
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| rowspan=2| |
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| rowspan=2| |
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|- |
|- |
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| <sup> |
| β<sup>+</sup> (27%) |
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| <sup>204</sup>At |
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| |
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|- |
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| style="text-align:right" | 86 |
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| rowspan=2|<sup>205</sup>Rn |
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| style="text-align:right" | 121 |
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| rowspan=2| |
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| 206.990734(28) |
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| rowspan=2 style="text-align:right" | 86 |
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| 9.25(17) min |
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| rowspan=2 style="text-align:right" | 119 |
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| 5/2- |
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| rowspan=2|204.99172(5) |
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| |
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| rowspan=2|170(4) s |
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| |
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| β<sup>+</sup> (77%) |
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| <sup>205</sup>At |
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| rowspan=2|5/2- |
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| rowspan=2| |
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| rowspan=2| |
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|- |
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| α (23%) |
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| <sup>201</sup>Po |
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|- |
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| rowspan=2|<sup>206</sup>Rn |
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| rowspan=2| |
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| rowspan=2 style="text-align:right" | 86 |
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| rowspan=2 style="text-align:right" | 120 |
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| rowspan=2|205.990214(16) |
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| rowspan=2|5.67(17) min |
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| α (62%) |
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| <sup>202</sup>Po |
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| rowspan=2|0+ |
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| rowspan=2| |
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| rowspan=2| |
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|- |
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| β<sup>+</sup> (38%) |
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| <sup>206</sup>At |
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|- |
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| rowspan=2|<sup>207</sup>Rn |
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| rowspan=2| |
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| rowspan=2 style="text-align:right" | 86 |
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| rowspan=2 style="text-align:right" | 121 |
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| rowspan=2|206.990734(28) |
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| rowspan=2|9.25(17) min |
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| β<sup>+</sup> (79%) |
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| <sup>207</sup>At |
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| rowspan=2|5/2- |
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| rowspan=2| |
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| rowspan=2| |
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|- |
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| α (21%) |
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| <sup>203</sup>Po |
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|- |
|- |
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| style="text-indent:1em" | <sup>207m</sup>Rn |
| style="text-indent:1em" | <sup>207m</sup>Rn |
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Line 189: | Line 278: | ||
| colspan="3" style="text-indent:2em" | 899.0(10) keV |
| colspan="3" style="text-indent:2em" | 899.0(10) keV |
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| 181(18) µs |
| 181(18) µs |
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| (13/2+) |
|||
| |
| |
||
| |
| |
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| (13/2+) |
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|- |
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| <sup>208</sup>Rn |
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| |
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| style="text-align:right" | 86 |
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| style="text-align:right" | 122 |
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| 207.989642(12) |
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| 24.35(14) min |
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| 0+ |
|||
| |
| |
||
| |
| |
||
|- |
|- |
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| <sup> |
| rowspan=2|<sup>208</sup>Rn |
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| rowspan=2| |
|||
| |
|||
| style="text-align:right" | 86 |
| rowspan=2 style="text-align:right" | 86 |
||
| style="text-align:right" | |
| rowspan=2 style="text-align:right" | 122 |
||
| rowspan=2|207.989642(12) |
|||
| 208.990415(21) |
|||
| |
| rowspan=2|24.35(14) min |
||
| α (62%) |
|||
| 5/2- |
|||
| <sup>204</sup>Po |
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| |
|||
| rowspan=2|0+ |
|||
| |
|||
| rowspan=2| |
|||
| rowspan=2| |
|||
|- |
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| β<sup>+</sup> (38%) |
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| <sup>208</sup>At |
|||
|- |
|||
| rowspan=2|<sup>209</sup>Rn |
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| rowspan=2| |
|||
| rowspan=2 style="text-align:right" | 86 |
|||
| rowspan=2 style="text-align:right" | 123 |
|||
| rowspan=2|208.990415(21) |
|||
| rowspan=2|28.5(10) min |
|||
| β<sup>+</sup> (83%) |
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| <sup>209</sup>At |
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| rowspan=2|5/2- |
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| rowspan=2| |
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| rowspan=2| |
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|- |
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| α (17%) |
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| <sup>205</sup>Po |
|||
|- |
|- |
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| style="text-indent:1em" | <sup>209m1</sup>Rn |
| style="text-indent:1em" | <sup>209m1</sup>Rn |
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Line 217: | Line 318: | ||
| colspan="3" style="text-indent:2em" | 1173.98(13) keV |
| colspan="3" style="text-indent:2em" | 1173.98(13) keV |
||
| 13.4(13) µs |
| 13.4(13) µs |
||
| |
|||
| |
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| 13/2+ |
| 13/2+ |
||
| |
| |
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Line 225: | Line 328: | ||
| colspan="3" style="text-indent:2em" | 3636.78(23) keV |
| colspan="3" style="text-indent:2em" | 3636.78(23) keV |
||
| 3.0(3) µs |
| 3.0(3) µs |
||
| (35/2+) |
|||
| |
| |
||
| |
| |
||
| (35/2+) |
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|- |
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| <sup>210</sup>Rn |
|||
| |
|||
| style="text-align:right" | 86 |
|||
| style="text-align:right" | 124 |
|||
| 209.989696(9) |
|||
| 2.4(1) h |
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| 0+ |
|||
| |
| |
||
| |
| |
||
|- |
|||
| rowspan=2|<sup>210</sup>Rn |
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| rowspan=2| |
|||
| rowspan=2 style="text-align:right" | 86 |
|||
| rowspan=2 style="text-align:right" | 124 |
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| rowspan=2|209.989696(9) |
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| rowspan=2|2.4(1) h |
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| α (96%) |
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| <sup>206</sup>Po |
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| rowspan=2|0+ |
|||
| rowspan=2| |
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| rowspan=2| |
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|- |
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| β<sup>+</sup> (4%) |
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| <sup>210</sup>At |
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|- |
|- |
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| style="text-indent:1em" | <sup>210m1</sup>Rn |
| style="text-indent:1em" | <sup>210m1</sup>Rn |
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Line 243: | Line 353: | ||
| colspan="3" style="text-indent:2em" | 1690(15) keV |
| colspan="3" style="text-indent:2em" | 1690(15) keV |
||
| 644(40) ns |
| 644(40) ns |
||
| |
|||
| |
|||
| 8+# |
| 8+# |
||
| |
| |
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Line 251: | Line 363: | ||
| colspan="3" style="text-indent:2em" | 3837(15) keV |
| colspan="3" style="text-indent:2em" | 3837(15) keV |
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| 1.06(5) µs |
| 1.06(5) µs |
||
| |
|||
| |
|||
| (17)- |
| (17)- |
||
| |
| |
||
Line 259: | Line 373: | ||
| colspan="3" style="text-indent:2em" | 6493(15) keV |
| colspan="3" style="text-indent:2em" | 6493(15) keV |
||
| 1.04(7) µs |
| 1.04(7) µs |
||
| (22)+ |
|||
| |
| |
||
| |
| |
||
| (22)+ |
|||
|- |
|||
| <sup>211</sup>Rn |
|||
| |
|||
| style="text-align:right" | 86 |
|||
| style="text-align:right" | 125 |
|||
| 210.990601(7) |
|||
| 14.6(2) h |
|||
| 1/2- |
|||
| |
| |
||
| |
| |
||
|- |
|- |
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| <sup> |
| rowspan=2|<sup>211</sup>Rn |
||
| rowspan=2| |
|||
| |
|||
| style="text-align:right" | 86 |
| rowspan=2 style="text-align:right" | 86 |
||
| style="text-align:right" | |
| rowspan=2 style="text-align:right" | 125 |
||
| rowspan=2|210.990601(7) |
|||
| 211.990704(3) |
|||
| |
| rowspan=2|14.6(2) h |
||
| α (72.6%) |
|||
| 0+ |
|||
| <sup>207</sup>Po |
|||
| |
|||
| rowspan=2|1/2- |
|||
| |
|||
| rowspan=2| |
|||
| rowspan=2| |
|||
|- |
|||
| β<sup>+</sup> (27.4%) |
|||
| <sup>211</sup>At |
|||
|- |
|||
| rowspan=2|<sup>212</sup>Rn |
|||
| rowspan=2| |
|||
| rowspan=2 style="text-align:right" | 86 |
|||
| rowspan=2 style="text-align:right" | 126 |
|||
| rowspan=2|211.990704(3) |
|||
| rowspan=2|23.9(12) min |
|||
| α |
|||
| <sup>208</sup>Po |
|||
| rowspan=2|0+ |
|||
| rowspan=2| |
|||
| rowspan=2| |
|||
|- |
|||
| β<sup>+</sup>β<sup>+</sup> (rare) |
|||
| <sup>212</sup>Po |
|||
|- |
|- |
||
| <sup>213</sup>Rn |
| <sup>213</sup>Rn |
||
Line 289: | Line 415: | ||
| 212.993883(6) |
| 212.993883(6) |
||
| 19.5(1) ms |
| 19.5(1) ms |
||
| α |
|||
| <sup>209</sup>Po |
|||
| (9/2+) |
| (9/2+) |
||
| |
| |
||
| |
| |
||
|- |
|- |
||
| <sup>214</sup>Rn |
| rowspan=2|<sup>214</sup>Rn |
||
| rowspan=2| |
|||
| |
|||
| style="text-align:right" | 86 |
| rowspan=2 style="text-align:right" | 86 |
||
| style="text-align:right" | 128 |
| rowspan=2 style="text-align:right" | 128 |
||
| 213.995363(10) |
| rowspan=2|213.995363(10) |
||
| 0.27(2) µs |
| rowspan=2|0.27(2) µs |
||
| |
| α |
||
| <sup>210</sup>Po |
|||
| |
|||
| rowspan=2|0+ |
|||
| |
|||
| rowspan=2| |
|||
| rowspan=2| |
|||
|- |
|||
| β<sup>+</sup>β<sup>+</sup> (rare) |
|||
| <sup>214</sup>Po |
|||
|- |
|- |
||
| style="text-indent:1em" | <sup>214m</sup>Rn |
| style="text-indent:1em" | <sup>214m</sup>Rn |
||
Line 307: | Line 440: | ||
| colspan="3" style="text-indent:2em" | 4595.4 keV |
| colspan="3" style="text-indent:2em" | 4595.4 keV |
||
| 245(30) ns |
| 245(30) ns |
||
| |
|||
| |
|||
| (22+) |
| (22+) |
||
| |
| |
||
Line 317: | Line 452: | ||
| 214.998745(8) |
| 214.998745(8) |
||
| 2.30(10) µs |
| 2.30(10) µs |
||
| α |
|||
| <sup>211</sup>Po |
|||
| 9/2+ |
| 9/2+ |
||
| |
| |
||
Line 327: | Line 464: | ||
| 216.000274(8) |
| 216.000274(8) |
||
| 45(5) µs |
| 45(5) µs |
||
| α |
|||
| <sup>212</sup>Po |
|||
| 0+ |
| 0+ |
||
| |
| |
||
Line 337: | Line 476: | ||
| 217.003928(5) |
| 217.003928(5) |
||
| 0.54(5) ms |
| 0.54(5) ms |
||
| α |
|||
| <sup>213</sup>Po |
|||
| 9/2+ |
| 9/2+ |
||
| |
| |
||
Line 347: | Line 488: | ||
| 218.0056013(25) |
| 218.0056013(25) |
||
| 35(5) ms |
| 35(5) ms |
||
| α |
|||
| <sup>214</sup>Po |
|||
| 0+ |
| 0+ |
||
| <ref group="n" name="us">Occurs in trace quantities in nature as an intermediate [[decay product]] of [[Uranium-238|<sup>238</sup>U]]</ref> |
| <ref group="n" name="us">Occurs in trace quantities in nature as an intermediate [[decay product]] of [[Uranium-238|<sup>238</sup>U]]</ref> |
||
Line 357: | Line 500: | ||
| 219.0094802(27) |
| 219.0094802(27) |
||
| 3.96(1) s |
| 3.96(1) s |
||
| α |
|||
| <sup>215</sup>Po |
|||
| 5/2+ |
| 5/2+ |
||
| <ref group="n">Occurs in trace quantities in nature as an intermediate decay product of [[Uranium-235|<sup>235</sup>U]]</ref> |
| <ref group="n">Occurs in trace quantities in nature as an intermediate decay product of [[Uranium-235|<sup>235</sup>U]]</ref> |
||
| |
| |
||
|- |
|- |
||
| <sup>220</sup>Rn |
| rowspan=2|<sup>220</sup>Rn |
||
| Thoron<br>Thorium emanation |
| rowspan=2|Thoron<br>Thorium emanation |
||
| style="text-align:right" | 86 |
| rowspan=2 style="text-align:right" | 86 |
||
| style="text-align:right" | 134 |
| rowspan=2 style="text-align:right" | 134 |
||
| 220.0113940(24) |
| rowspan=2|220.0113940(24) |
||
| 55.6(1) s |
| rowspan=2|55.6(1) s |
||
| |
| α |
||
| <ref group="n">Occurs in trace quantities in nature as an intermediate decay product of <sup>232</sup>Th</ref> |
| <sup>216</sup>Po |
||
| rowspan=2|0+ |
|||
| rowspan=2|<ref group="n">Occurs in trace quantities in nature as an intermediate decay product of <sup>232</sup>Th</ref> |
|||
| rowspan=2| |
|||
| |
|||
|- |
|- |
||
| <sup> |
| β<sup>-</sup>β<sup>-</sup> (rare) |
||
| <sup>220</sup>Ra |
|||
| |
|||
|- |
|||
| style="text-align:right" | 86 |
|||
| rowspan=2|<sup>221</sup>Rn |
|||
| style="text-align:right" | 135 |
|||
| rowspan=2| |
|||
| 221.015537(6) |
|||
| rowspan=2 style="text-align:right" | 86 |
|||
| 25.7(5) min |
|||
| rowspan=2 style="text-align:right" | 135 |
|||
| 7/2(+) |
|||
| rowspan=2|221.015537(6) |
|||
| |
|||
| rowspan=2|25.7(5) min |
|||
| |
|||
| β<sup>-</sup> (78%) |
|||
| <sup>221</sup>Fr |
|||
| rowspan=2|7/2(+) |
|||
| rowspan=2| |
|||
| rowspan=2| |
|||
|- |
|||
| α (22%) |
|||
| <sup>217</sup>Po |
|||
|- |
|- |
||
| <sup>222</sup>Rn |
| <sup>222</sup>Rn |
||
Line 387: | Line 542: | ||
| 222.0175777(25) |
| 222.0175777(25) |
||
| 3.8235(3) d |
| 3.8235(3) d |
||
| α |
|||
| <sup>218</sup>Po |
|||
| 0+ |
| 0+ |
||
| <ref group="n" name="us" /> |
| <ref group="n" name="us" /> |
||
Line 397: | Line 554: | ||
| 223.02179(32)# |
| 223.02179(32)# |
||
| 24.3(4) min |
| 24.3(4) min |
||
| β<sup>-</sup> |
|||
| <sup>223</sup>Fr |
|||
| 7/2 |
| 7/2 |
||
| |
| |
||
Line 407: | Line 566: | ||
| 224.02409(32)# |
| 224.02409(32)# |
||
| 107(3) min |
| 107(3) min |
||
| β<sup>-</sup> |
|||
| <sup>224</sup>Fr |
|||
| 0+ |
| 0+ |
||
| |
| |
||
Line 417: | Line 578: | ||
| 225.02844(32)# |
| 225.02844(32)# |
||
| 4.66(4) min |
| 4.66(4) min |
||
| β<sup>-</sup> |
|||
| <sup>225</sup>Fr |
|||
| 7/2- |
| 7/2- |
||
| |
| |
||
Line 427: | Line 590: | ||
| 226.03089(43)# |
| 226.03089(43)# |
||
| 7.4(1) min |
| 7.4(1) min |
||
| β<sup>-</sup> |
|||
| <sup>226</sup>Fr |
|||
| 0+ |
| 0+ |
||
| |
| |
||
Line 437: | Line 602: | ||
| 227.03541(45)# |
| 227.03541(45)# |
||
| 20.8(7) s |
| 20.8(7) s |
||
| β<sup>-</sup> |
|||
| <sup>227</sup>Fr |
|||
| 5/2(+#) |
| 5/2(+#) |
||
| |
| |
||
Line 447: | Line 614: | ||
| 228.03799(44)# |
| 228.03799(44)# |
||
| 65(2) s |
| 65(2) s |
||
| β<sup>-</sup> |
|||
| <sup>228</sup>Fr |
|||
| 0+ |
| 0+ |
||
| |
| |
||
Line 457: | Line 626: | ||
| 229.0426536(141) |
| 229.0426536(141) |
||
| 12 s |
| 12 s |
||
| |
|||
| |
|||
| |
| |
||
| |
| |
Revision as of 01:16, 16 May 2011
There are thirty four known isotopes of radon (Rn). The most stable isotope is 222Rn with a half-life of 3.823 days. Four isotopes, 218, 219, 220, 222Rn occur in trace quantities in nature as decay products of, respectively, 218At, 219At, 224Ra, and 226Ra. 218Rn and 222Rn are intermediate steps in the decay chain for 238U, 219Rn is an intermediate step in the decay chain for 235U and 220Rn occurs in the decay chain for 232Th.
Table
nuclide symbol |
historic name |
Z(p) | N(n) | isotopic mass (u) |
half-life | decay mode(s)[1][n 1] |
daughter isotope(s) |
nuclear spin |
representative isotopic composition (mole fraction) |
range of natural variation (mole fraction) |
---|---|---|---|---|---|---|---|---|---|---|
excitation energy | ||||||||||
195Rn | 86 | 109 | 195.00544(5) | 6 ms | 3/2-# | |||||
195mRn | 50(50) keV | 6 ms | 13/2+# | |||||||
196Rn | style="text-align:right" | 86 | style="text-align:right" | 110 | 196.002115(16) | 4.7(11) ms [4.4(+13-9) ms] |
α | 192Po | 0+ | |||
β+ (rare) | 196At | |||||||||
197Rn | style="text-align:right" | 86 | style="text-align:right" | 111 | 197.00158(7) | 66(16) ms [65(+25-14) ms] |
α | 193Po | 3/2-# | |||
β+ (rare) | 193At | |||||||||
197mRn | 200(60)# keV | 21(5) ms [19(+8-4) ms] |
α | 193Po | (13/2+) | |||||
β+ (rare) | 197At | |||||||||
198Rn | 86 | 112 | 197.998679(14) | 65(3) ms | α (99%) | 194Po | 0+ | |||
β+ (1%) | 198At | |||||||||
199Rn | 86 | 113 | 198.99837(7) | 620(30) ms | α (94%) | 195Po | 3/2-# | |||
β+ (6%) | 195At | |||||||||
199mRn | 180(70) keV | 320(20) ms | α (97%) | 195Po | 13/2+# | |||||
β+ (3%) | 199At | |||||||||
200Rn | 86 | 114 | 199.995699(14) | 0.96(3) s | α (98%) | 196Po | 0+ | |||
β+ (2%) | 200At | |||||||||
201Rn | 86 | 115 | 200.99563(8) | 7.0(4) s | α (80%) | 197Po | (3/2-) | |||
β+ (20%) | 201At | |||||||||
201mRn | 280(90)# keV | 3.8(1) s | α (90%) | 197Po | (13/2+) | |||||
β+ (10%) | 201At | |||||||||
IT (<1%) | 201Rn | |||||||||
202Rn | 86 | 116 | 201.993263(19) | 9.94(18) s | α (85%) | 198Po | 0+ | |||
β+ (15%) | 202At | |||||||||
203Rn | 86 | 117 | 202.993387(25) | 44.2(16) s | α (66%) | 199Po | (3/2-) | |||
β+ (34%) | 203At | |||||||||
203mRn | 363(4) keV | 26.7(5) s | α (80%) | 199Po | 13/2(+) | |||||
β+ (20%) | 203At | |||||||||
204Rn | 86 | 118 | 203.991429(16) | 1.17(18) min | α (73%) | 200Po | 0+ | |||
β+ (27%) | 204At | |||||||||
205Rn | 86 | 119 | 204.99172(5) | 170(4) s | β+ (77%) | 205At | 5/2- | |||
α (23%) | 201Po | |||||||||
206Rn | 86 | 120 | 205.990214(16) | 5.67(17) min | α (62%) | 202Po | 0+ | |||
β+ (38%) | 206At | |||||||||
207Rn | 86 | 121 | 206.990734(28) | 9.25(17) min | β+ (79%) | 207At | 5/2- | |||
α (21%) | 203Po | |||||||||
207mRn | 899.0(10) keV | 181(18) µs | (13/2+) | |||||||
208Rn | 86 | 122 | 207.989642(12) | 24.35(14) min | α (62%) | 204Po | 0+ | |||
β+ (38%) | 208At | |||||||||
209Rn | 86 | 123 | 208.990415(21) | 28.5(10) min | β+ (83%) | 209At | 5/2- | |||
α (17%) | 205Po | |||||||||
209m1Rn | 1173.98(13) keV | 13.4(13) µs | 13/2+ | |||||||
209m2Rn | 3636.78(23) keV | 3.0(3) µs | (35/2+) | |||||||
210Rn | 86 | 124 | 209.989696(9) | 2.4(1) h | α (96%) | 206Po | 0+ | |||
β+ (4%) | 210At | |||||||||
210m1Rn | 1690(15) keV | 644(40) ns | 8+# | |||||||
210m2Rn | 3837(15) keV | 1.06(5) µs | (17)- | |||||||
210m3Rn | 6493(15) keV | 1.04(7) µs | (22)+ | |||||||
211Rn | 86 | 125 | 210.990601(7) | 14.6(2) h | α (72.6%) | 207Po | 1/2- | |||
β+ (27.4%) | 211At | |||||||||
212Rn | 86 | 126 | 211.990704(3) | 23.9(12) min | α | 208Po | 0+ | |||
β+β+ (rare) | 212Po | |||||||||
213Rn | 86 | 127 | 212.993883(6) | 19.5(1) ms | α | 209Po | (9/2+) | |||
214Rn | 86 | 128 | 213.995363(10) | 0.27(2) µs | α | 210Po | 0+ | |||
β+β+ (rare) | 214Po | |||||||||
214mRn | 4595.4 keV | 245(30) ns | (22+) | |||||||
215Rn | 86 | 129 | 214.998745(8) | 2.30(10) µs | α | 211Po | 9/2+ | |||
216Rn | 86 | 130 | 216.000274(8) | 45(5) µs | α | 212Po | 0+ | |||
217Rn | 86 | 131 | 217.003928(5) | 0.54(5) ms | α | 213Po | 9/2+ | |||
218Rn | 86 | 132 | 218.0056013(25) | 35(5) ms | α | 214Po | 0+ | [n 2] | ||
219Rn | Actinon Actinium emanation |
86 | 133 | 219.0094802(27) | 3.96(1) s | α | 215Po | 5/2+ | [n 3] | |
220Rn | Thoron Thorium emanation |
86 | 134 | 220.0113940(24) | 55.6(1) s | α | 216Po | 0+ | [n 4] | |
β-β- (rare) | 220Ra | |||||||||
221Rn | 86 | 135 | 221.015537(6) | 25.7(5) min | β- (78%) | 221Fr | 7/2(+) | |||
α (22%) | 217Po | |||||||||
222Rn | Radon[n 5] Radium emanation Emanation Emanon Niton |
86 | 136 | 222.0175777(25) | 3.8235(3) d | α | 218Po | 0+ | [n 2] | |
223Rn | 86 | 137 | 223.02179(32)# | 24.3(4) min | β- | 223Fr | 7/2 | |||
224Rn | 86 | 138 | 224.02409(32)# | 107(3) min | β- | 224Fr | 0+ | |||
225Rn | 86 | 139 | 225.02844(32)# | 4.66(4) min | β- | 225Fr | 7/2- | |||
226Rn | 86 | 140 | 226.03089(43)# | 7.4(1) min | β- | 226Fr | 0+ | |||
227Rn | 86 | 141 | 227.03541(45)# | 20.8(7) s | β- | 227Fr | 5/2(+#) | |||
228Rn | 86 | 142 | 228.03799(44)# | 65(2) s | β- | 228Fr | 0+ | |||
229Rn | 86 | 143 | 229.0426536(141) | 12 s |
- ^ Abbreviations:
IT: Isomeric transition - ^ a b Occurs in trace quantities in nature as an intermediate decay product of 238U
- ^ Occurs in trace quantities in nature as an intermediate decay product of 235U
- ^ Occurs in trace quantities in nature as an intermediate decay product of 232Th
- ^ Source of element's name
Notes
- Values marked # are not purely derived from experimental data, but at least partly from systematic trends. Spins with weak assignment arguments are enclosed in parentheses.
- Uncertainties are given in concise form in parentheses after the corresponding last digits. Uncertainty values denote one standard deviation, except isotopic composition and standard atomic mass from IUPAC which use expanded uncertainties.
References
- Isotope masses from:
- G. Audi, A. H. Wapstra, C. Thibault, J. Blachot and O. Bersillon (2003). "The NUBASE evaluation of nuclear and decay properties" (PDF). Nuclear Physics A. 729: 3–128. doi:10.1016/j.nuclphysa.2003.11.001.
{{cite journal}}
: CS1 maint: multiple names: authors list (link)
- G. Audi, A. H. Wapstra, C. Thibault, J. Blachot and O. Bersillon (2003). "The NUBASE evaluation of nuclear and decay properties" (PDF). Nuclear Physics A. 729: 3–128. doi:10.1016/j.nuclphysa.2003.11.001.
- Isotopic compositions and standard atomic masses from:
- J. R. de Laeter, J. K. Böhlke, P. De Bièvre, H. Hidaka, H. S. Peiser, K. J. R. Rosman and P. D. P. Taylor (2003). "Atomic weights of the elements. Review 2000 (IUPAC Technical Report)". Pure and Applied Chemistry. 75 (6): 683–800. doi:10.1351/pac200375060683.
{{cite journal}}
: CS1 maint: multiple names: authors list (link) - M. E. Wieser (2006). "Atomic weights of the elements 2005 (IUPAC Technical Report)". Pure and Applied Chemistry. 78 (11): 2051–2066. doi:10.1351/pac200678112051.
{{cite journal}}
: Unknown parameter|laysummary=
ignored (help)
- J. R. de Laeter, J. K. Böhlke, P. De Bièvre, H. Hidaka, H. S. Peiser, K. J. R. Rosman and P. D. P. Taylor (2003). "Atomic weights of the elements. Review 2000 (IUPAC Technical Report)". Pure and Applied Chemistry. 75 (6): 683–800. doi:10.1351/pac200375060683.
- Half-life, spin, and isomer data selected from the following sources. See editing notes on this article's talk page.
- G. Audi, A. H. Wapstra, C. Thibault, J. Blachot and O. Bersillon (2003). "The NUBASE evaluation of nuclear and decay properties" (PDF). Nuclear Physics A. 729: 3–128. doi:10.1016/j.nuclphysa.2003.11.001.
{{cite journal}}
: CS1 maint: multiple names: authors list (link) - National Nuclear Data Center. "NuDat 2.1 database". Brookhaven National Laboratory. Retrieved September 2005.
{{cite web}}
: Check date values in:|accessdate=
(help) - N. E. Holden (2004). "Table of the Isotopes". In D. R. Lide (ed.). CRC Handbook of Chemistry and Physics (85th ed.). CRC Press. Section 11. ISBN 978-0849304859.
{{cite book}}
: Unknown parameter|nopp=
ignored (|no-pp=
suggested) (help)
- G. Audi, A. H. Wapstra, C. Thibault, J. Blachot and O. Bersillon (2003). "The NUBASE evaluation of nuclear and decay properties" (PDF). Nuclear Physics A. 729: 3–128. doi:10.1016/j.nuclphysa.2003.11.001.