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Line 1: − '''Bismuth''' is an [[element]] that has the symbol '''Bi''' and [[atomic number]] 83. This heavy, brittle, white crystalline trivalent metal has a pink tinge and chemically resembles [[arsenic]] and [[antimony]]. Of all the metals, it is the most naturally diamagnetic, and only [[mercury|mercury]] has a lower thermal conductivity. It is generally considered to be the last naturally occurring stable, non-radioactive element on the periodic table, although it is actually slightly radioactive, with an extremely long half-life.+ − + − {{Element | name=Bismuth | symbol=Bi | anumber=83 | amass=209.0 amu | noe=83 | class=Standard Metal | cstructure=Rhombohedral | color=White | date=Bismuth has been known since ancient times. | discname=Unknown | origname=From the German ''wissmuth''. | uses=Bismuth is used in medications and pyrotechnics | obtained=Bismuthine. }}+ + + + +
19 quintillion years! How do we know? I'll write about that someday.
{{Element | name=Bismuth | symbol=Bi | anumber=83 | amass=208.9804 amu | class=Pnictogen | cstructure=Rhombohedral | density=9.8 g/cm^3 | color=White | stableisotopes=1 | date=Known since the 15th century. | discname=Shown to be a distinct element in 1753 by Claude Geoffrey | origname=From the German ''bisemutm'', related to ''wissmuth'', "white mass". | uses=Pharmaceuticals, alloys, electronics, pigments, fire alarms, and pyrotechnics | obtained=Bismuthine, bismuthinite, bismite, bismutite. Commercially obtained as byproduct of lead or copper smelting.}}
Bismuth compounds are used in cosmetics, medicines, and in medical procedures. As the toxicity of [[lead]] has become more apparent in recent years, alloy uses for bismuth metal as a replacement for lead have become an increasing part of bismuth's commercial importance.
'''Bismuth''' is an [[element]] that has the symbol '''Bi''' and [[atomic number]] 83. It is in the "pnictogen" ([[phosphorus]] group) column of the [[periodic table]].
This heavy, brittle, white crystalline trivalent metal has a pink tinge and chemically resembles [[arsenic]] and [[antimony]]. Of all the metals, it is the most naturally diamagnetic, and only [[mercury|mercury]] has a lower thermal conductivity. It has generally been considered to be the last stable, non-radioactive element on the periodic table. But its one "stable" isotope was recently shown to be radioactive with [[half-life]] of over 10<sup>19</sup> (19 quintillion) years.
Bismuth compounds are used in cosmetics, medicines, and in medical procedures. As the toxicity of [[lead]] has become more apparent in recent years, alloy uses for bismuth metal as a replacement for lead have become an increasing part of bismuth's commercial importance.
Alloys with bismuth can have very low melting points, and are used as triggers in fire sprinkler systems.
[[Category:Elements]]
[[Category:Elements]]
[[Category:Metals]]
[[Category:Metals]]