Isotopes of antimony
From Wikipedia, the free encyclopedia
Antimony (Sb) occurs in two stable isotopes, 121Sb and 123Sb. There are thirty-five artificial radioactive isotopes, the longest-lived of which are 125Sb with a half-life of 2.75856 years, 124Sb with a half-life of 60.2 days, and 126Sb with a half-life of 12.35 days. All other isotopes have half-lives less than 4 days, most less than an hour.
There are also many isomers, the longest-lived of which is 120m1Sb with a half-life of 5.76 days.
Standard atomic mass: 121.760(1) u
Contents |
[edit] Table
| nuclide symbol |
Z(p) | N(n) | isotopic mass (u) |
half-life | decay mode(s)[1][n 1] |
daughter isotope(s)[n 2] |
nuclear spin |
representative isotopic composition (mole fraction) |
range of natural variation (mole fraction) |
|---|---|---|---|---|---|---|---|---|---|
| excitation energy | |||||||||
| 103Sb | 51 | 52 | 102.93969(32)# | 100# ms [>1.5 µs] | β+ | 103Sn | 5/2+# | ||
| 104Sb | 51 | 53 | 103.93647(39)# | 0.47(13) s [0.44(+15-11) s] |
β+ (86%) | 104Sn | |||
| p (7%) | 103Sn | ||||||||
| β+, p (7%) | 103In | ||||||||
| α (<1%) | 100In | ||||||||
| 105Sb | 51 | 54 | 104.93149(11) | 1.12(16) s | β+ (99%) | 105Sn | (5/2+) | ||
| p (1%) | 104Sn | ||||||||
| β+, p (<1%) | 104In | ||||||||
| 106Sb | 51 | 55 | 105.92879(34)# | 0.6(2) s | β+ | 106Sn | (4+) | ||
| 106mSb | 1000(500)# keV | 220(20) ns | |||||||
| 107Sb | 51 | 56 | 106.92415(32)# | 4.0(2) s | β+ | 107Sn | 5/2+# | ||
| 108Sb | 51 | 57 | 107.92216(22)# | 7.4(3) s | β+ | 108Sn | (4+) | ||
| β+, p (rare) | 107In | ||||||||
| 109Sb | 51 | 58 | 108.918132(20) | 17.3(5) s | β+ | 109Sn | 5/2+# | ||
| 110Sb | 51 | 59 | 109.91675(22)# | 23.0(4) s | β+ | 110Sn | (4+) | ||
| 111Sb | 51 | 60 | 110.91316(3) | 75(1) s | β+ | 111Sn | (5/2+) | ||
| 112Sb | 51 | 61 | 111.912398(19) | 51.4(10) s | β+ | 112Sn | 3+ | ||
| 113Sb | 51 | 62 | 112.909372(19) | 6.67(7) min | β+ | 113Sn | 5/2+ | ||
| 114Sb | 51 | 63 | 113.90927(3) | 3.49(3) min | β+ | 114Sn | (3+) | ||
| 114mSb | 495.5(7) keV | 219(12) µs | (8-) | ||||||
| 115Sb | 51 | 64 | 114.906598(17) | 32.1(3) min | β+ | 115Sn | 5/2+ | ||
| 116Sb | 51 | 65 | 115.906794(6) | 15.8(8) min | β+ | 116Sn | 3+ | ||
| 116m1Sb | 93.99(5) keV | 194(4) ns | 1+ | ||||||
| 116m2Sb | 380(40) keV | 60.3(6) min | β+ | 116Sn | 8- | ||||
| 117Sb | 51 | 66 | 116.904836(10) | 2.80(1) h | β+ | 117Sn | 5/2+ | ||
| 118Sb | 51 | 67 | 117.905529(4) | 3.6(1) min | β+ | 118Sn | 1+ | ||
| 118m1Sb | 50.814(21) keV | 20.6(6) µs | (3)+ | ||||||
| 118m2Sb | 250(6) keV | 5.00(2) h | β+ | 118Sn | 8- | ||||
| 119Sb | 51 | 68 | 118.903942(9) | 38.19(22) h | EC | 119Sn | 5/2+ | ||
| 119m1Sb | 2553.6(3) keV | 130(3) ns | (19/2-) | ||||||
| 119m2Sb | 2852(7) keV | 850(90) ms | IT | 119Sb | 27/2+# | ||||
| 120Sb | 51 | 69 | 119.905072(8) | 15.89(4) min | β+ | 120Sn | 1+ | ||
| 120m1Sb | 0(100)# keV | 5.76(2) d | β+ | 120Sn | 8- | ||||
| 120m2Sb | 78.16(5) keV | 246(2) ns | (3+) | ||||||
| 120m3Sb | 2328.3(6) keV | 400(8) ns | (6) | ||||||
| 121Sb[n 3] | 51 | 70 | 120.9038157(24) | Observationally Stable[n 4] | 5/2+ | 0.5721(5) | |||
| 122Sb | 51 | 71 | 121.9051737(24) | 2.7238(2) d | β- (97.59%) | 122Te | 2- | ||
| β+ (2.41%) | 122Sn | ||||||||
| 122m1Sb | 61.4131(5) keV | 1.86(8) µs | 3+ | ||||||
| 122m2Sb | 137.4726(8) keV | 0.53(3) ms | (5)+ | ||||||
| 122m3Sb | 163.5591(17) keV | 4.191(3) min | IT | 122Sb | (8)- | ||||
| 123Sb[n 3] | 51 | 72 | 122.9042140(22) | Observationally Stable[n 4] | 7/2+ | 0.4279(5) | |||
| 124Sb | 51 | 73 | 123.9059357(22) | 60.20(3) d | β- | 124Te | 3- | ||
| 124m1Sb | 10.8627(8) keV | 93(5) s | IT (75%) | 124Sb | 5+ | ||||
| β- (25%) | 124Te | ||||||||
| 124m2Sb | 36.8440(14) keV | 20.2(2) min | (8)- | ||||||
| 124m3Sb | 40.8038(7) keV | 3.2(3) µs | (3+,4+) | ||||||
| 125Sb | 51 | 74 | 124.9052538(28) | 2.75856(25) a | β- | 125mTe | 7/2+ | ||
| 126Sb | 51 | 75 | 125.90725(3) | 12.35(6) d | β- | 126Te | (8-) | ||
| 126m1Sb | 17.7(3) keV | 19.15(8) min | β- (86%) | 126Te | (5+) | ||||
| IT (14%) | 126Sb | ||||||||
| 126m2Sb | 40.4(3) keV | ~11 s | IT | 126m1Sb | (3-) | ||||
| 126m3Sb | 104.6(3) keV | 553(5) ns | (3+) | ||||||
| 127Sb | 51 | 76 | 126.906924(6) | 3.85(5) d | β- | 127mTe | 7/2+ | ||
| 128Sb | 51 | 77 | 127.909169(27) | 9.01(4) h | β- | 128Te | 8- | ||
| 128mSb | 10(7) keV | 10.4(2) min | β- (96.4%) | 128Te | 5+ | ||||
| IT (3.6%) | 128Sb | ||||||||
| 129Sb | 51 | 78 | 128.909148(23) | 4.40(1) h | β- | 129mTe | 7/2+ | ||
| 129m1Sb | 1851.05(10) keV | 17.7(1) min | β- (85%) | 129Te | (19/2-) | ||||
| IT (15%) | 129Sb | ||||||||
| 129m2Sb | 1860.90(10) keV | >2 µs | (15/2-) | ||||||
| 129m3Sb | 2138.9(5) keV | 1.1(1) µs | (23/2+) | ||||||
| 130Sb | 51 | 79 | 129.911656(18) | 39.5(8) min | β- | 130Te | (8-)# | ||
| 130mSb | 4.80(20) keV | 6.3(2) min | β- | 130Te | (4,5)+ | ||||
| 131Sb | 51 | 80 | 130.911982(22) | 23.03(4) min | β- | 131mTe | (7/2+) | ||
| 132Sb | 51 | 81 | 131.914467(15) | 2.79(5) min | β- | 132Te | (4+) | ||
| 132m1Sb | 200(30) keV | 4.15(5) min | β- | 132Te | (8-) | ||||
| 132m2Sb | 254.5(3) keV | 102(4) ns | (6-) | ||||||
| 133Sb | 51 | 82 | 132.915252(27) | 2.5(1) min | β- | 133mTe | (7/2+) | ||
| 134Sb | 51 | 83 | 133.92038(5) | 0.78(6) s | β- | 134Te | (0-) | ||
| 134mSb | 80(110) keV | 10.07(5) s | β- (99.9%) | 134Te | (7-) | ||||
| β-, n (.091%) | 133Te | ||||||||
| 135Sb | 51 | 84 | 134.92517(11) | 1.68(2) s | β- (82.4%) | 135Te | (7/2+) | ||
| β-, n (17.6%) | 134Te | ||||||||
| 136Sb | 51 | 85 | 135.93035(32)# | 0.923(14) s | β- (83%) | 136Te | 1-# | ||
| β-, n (17%) | 135Te | ||||||||
| 136mSb | 173(3) keV | 570(50) ns | 6-# | ||||||
| 137Sb | 51 | 86 | 136.93531(43)# | 450(50) ms | β- | 137Te | 7/2+# | ||
| β-, n | 136Te | ||||||||
| 138Sb | 51 | 87 | 137.94079(32)# | 500# ms [>300 ns] | β- | 138Te | 2-# | ||
| β-, n | 137Te | ||||||||
| 139Sb | 51 | 88 | 138.94598(54)# | 300# ms [>300 ns] | β- | 139Te | 7/2+# | ||
- ^ Abbreviations:
EC: Electron capture
IT: Isomeric transition - ^ Bold for stable isotopes, bold italics for nearly-stable isotopes (half-life longer than the age of the universe)
- ^ a b Fission product
- ^ a b Theoretically capable of spontaneous fission
[edit] Notes
- Geologically exceptional samples are known in which the isotopic composition lies outside the reported range. The uncertainty in the atomic mass may exceed the stated value for such specimens.
- 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.
[edit] See also
 |
Book: Antimony |
| Wikipedia books are collections of articles that can be downloaded or ordered in print. | |
[edit] 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". Nuclear Physics A 729: 3–128. Bibcode 2003NuPhA.729....3A. doi:10.1016/j.nuclphysa.2003.11.001. http://www.nndc.bnl.gov/amdc/nubase/Nubase2003.pdf.
- 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. http://www.iupac.org/publications/pac/75/6/0683/pdf/.
- 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. http://iupac.org/publications/pac/78/11/2051/pdf/. Lay summary.
- 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". Nuclear Physics A 729: 3–128. Bibcode 2003NuPhA.729....3A. doi:10.1016/j.nuclphysa.2003.11.001. http://www.nndc.bnl.gov/amdc/nubase/Nubase2003.pdf.
- National Nuclear Data Center. "NuDat 2.1 database". Brookhaven National Laboratory. http://www.nndc.bnl.gov/nudat2/. Retrieved September 2005.
- N. E. Holden (2004). "Table of the Isotopes". In D. R. Lide. CRC Handbook of Chemistry and Physics (85th ed.). CRC Press. Section 11. ISBN 978-0849304859.
| Isotopes of tin | Isotopes of antimony | Isotopes of tellurium |
| Index to isotope pages · Table of nuclides | ||
