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It has been suggested that this page be merged into Post-transition metal. (Discuss) Proposed since June 2008.

The trivial name poor metals is sometimes applied to the metallic elements in the p-block of the periodic table. Their melting and boiling points are generally lower than those of the transition metals and their electronegativity higher, and they are also softer. They are distinguished from the metalloids, however, by their significantly higher boiling points in the same row.

"Poor metals" is not a rigorous IUPAC-approved nomenclature, but the grouping is generally taken to include aluminium, gallium, indium, tin, thallium, lead, and bismuth. Occasionally germanium, antimony, and polonium are also included, although these are usually considered to be metalloids or "semi-metals". Elements 113 to 116, which are currently allocated the systematic names ununtrium, ununquadium, ununpentium and ununhexium, would likely exhibit properties characteristic of poor metals; however sufficient quantities of them have not yet been synthesized to examine their chemical properties.

13 14 15 16 17
B
Boron
C
Carbon
N
Nitrogen
O
Oxygen
F
Fluorine
Al
Aluminium
Si
Silicon
P
Phosphorus
S
Sulfur
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

References

  • The Chemistry Student's Companion, Stephen Schaffter, Lulu Press, Inc 2006 ISBN 1-4116-9247-0

External links

Periodic table
Periodic table forms
Sets of elements
By periodic table structure
Groups
Periods
Blocks
By metallicity
Metals
Metalloids
Nonmetals
Other sets
Elements
Lists
Properties
Data pages
History
See also

af:Hoofgroepmetale ar:فلز ضعيف ast:Metal del bloque p ca:Metall del bloc p es:Metal del bloque p eo:Posttransira metalo eu:Metal txiro 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 ta:குறை மாழை th:โลหะหลังทรานซิชัน tr:Zayıf metaller zh:贫金属

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