Talk:Poor metal/Old article copy
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The trivial name poor metals (or post-transition metals) is sometimes applied to the metallic elements of the p-block of the periodic table. They are more electropositive than the transition metals, but less so than the alkali metals and alkaline earth metals. Their melting and boiling points are generally lower than those of the transition metals, and they are also softer.
"Poor metals" is not a rigorous IUPAC-approved nomenclature, but the grouping is generally taken to include gallium, indium, tin, thallium, lead, bismuth and polonium; germanium and antimony are sometimes included (although these are also often considered as metalloids or "semi-metals"). Elements 113 to 116 (currently allocated the systematic names ununtrium, ununquadium, ununpentium and ununhexium) would likely exhibit properties characteristic of "poor metals", however as yet insufficient quantities of them have been synthesized to examine their chemistry.
| 13 | 14 | 15 | 16 | 17 |
|---|---|---|---|---|
| B Boron |
C Carbon |
N Nitrogen |
O Oxygen |
F Fluorine |
| Al Aluminium |
Si Silicon |
P Phosphorus |
S Sulphur |
Cl Chlorine |
| Ga Gallium |
Ge Germanium |
As Arsenic |
Se Selenium |
Br Bromine |
| In Indium |
Sn Tin |
Sb Antimony |
Te Tellurium |
I Iodine |
| Tl Thallium |
Pb Lead |
Bi Bismuth |
Po Polonium |
At Astatine |
See also
ar:فلز ضعيف ast:Metal del bloque p ca:Metall del bloc p es:Metal del bloque p eo:Posttransira metalo fr:Métal pauvre ko:전이후 금속 id:Logam miskin is:Tregur málmur it:Metalli del blocco p he:מתכות מעבר עמידות lmo:Metàj del blòch p nl:Hoofdgroepmetaal ja:卑金属 sv:Övrig metall th:โลหะหลังทรานซิชั่น