bismuth

element 83

Bismuth

Diamagnetic chemical element with symbol Bi and atomic number 83

Bismuth crystals and 1cm3 cube.jpg

Bi

Chemical element with atomic number 83 (Bi)

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Bismuth is a chemical element; it has symbol Bi and atomic number 83. It is a post-transition metal and one of the pnictogens, with chemical properties resembling its lighter group 15 siblings arsenic and antimony. Elemental bismuth occurs naturally, and its sulfide and oxide forms are important commercial ores. The free element is 86% as dense as lead. It is a brittle metal with a silvery-white color when freshly produced. Surface oxidation generally gives samples of the metal a somewhat rosy cast. Further oxidation under heat can give bismuth a vividly iridescent appearance due to thin-film interference. Bismuth is the most diamagnetic element and of all the metals, it is among the most electrically resistive and least thermally conductive known.

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Bismuth

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