Periodic Table of the Elements Bismuth

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Periodic Table of the Elements: Bismuth

Periodic Table of the Elements: Bismuth

Atomic Number:	83
Atomic Symbol:	Bi
	Bismuth
Atomic Weight:	208.9804
Electron Configuration:	2 · 8 · 18 32 · 18 · 5

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bismuth

World Encyclopedia | 2005 | Â© World Encyclopedia 2005, originally published by Oxford University Press 2005. (Hide copyright information) Copyright

bismuth (symbol Bi) Metallic, silvery-white element of group V of the periodic table, first identified as a separate element in 1753. The chief ores are bismite (Bi₂O₃) and bismuthnite (Bi₂S₃). A poor heat conductor, it is put into low-melting alloys for automatic sprinkler systems. Bismuth is also used in insoluble compounds to treat gastric ulcers and skin injuries. It expands when it solidifies, a property exploited in several bismuth alloys for castings. Properties: at.no. 83; r.a.m. 208.98; r.d. 9.75; m.p. 271.3°C (520.3°F); b.p. 1560°C (2840°F); most common isotope Bi²⁰⁹ (100%).

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