ASCII PERIODIC TABLE OF THE ELEMENTS
Bi
Relative atomic mass: 208.98040 +- 0.00001
English: Bismuth
French: Bismuth
Croatian: Bizmut
German: Bismut
Italian: Bismuto
Spanish: Bismuto
Atomic number: 83
Group numbers: 15
Period: 6
Standard state (20 oC): solid
Discovery: 1450 Basil Valentine (DE)
Bismuth was discovered by Basil Valentine (DE) in 1450. The origin of the name comes from the German words Weisse Masse meaning white mass; now spelled wismut and bisemutum. It is a hard, brittle, steel-grey metal with a pink tint. It is stable in oxygen and water but dissolves in concentrated nitric acid. Bismuth can be found free in nature and in minerals like bismuthine (Bi2S3) and in bismuth ochre (Bi2O3) Main use is in pharmaceuticals and low melting point alloys used as fuses. The price of 99.99 % pure bismuth pieces is 110.20 € for 1000 g.
Electronic configuration: [Xe] 4f14 5d10 6s2 6p3
Formal oxidation number: +3 +5
Atomic radius: 154.5 pm
Electronegativities: 1.9
Thermal conductivity: 7.87 W/(m K)
Electrical resistivity (20 oC): 106.8 microOhm cm
Melting point: 271.4 oC
Boiling point: 1564 oC
Heat of fusion: 10.48 kJ/mol
Heat of vaporization: 179.1 kJ/mol
Heat of atomization: 207.36 kJ/mol
82Pb <= 83Bi => 84Po
ASCII Periodic Table of the Elements
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6 Jan. 2020
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