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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 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.

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.

Atomic symbol Bi
Atomic number 83
Classification Standard Metal
Atomic mass 209.0 amu
Other Information
Date of discovery Bismuth has been known since ancient times.
Name of discoverer Unknown
Name origin From the German wissmuth.
Uses Bismuth is used in medications and pyrotechnics
Obtained from Bismuthine.