bis·muth /ˈbɪzməθ/
鉍
bis·muth /ˈbɪzməθ/ 名詞
bismuth
鉍
Bis·muth n. Chem. One of the elements; a metal of a reddish white color, crystallizing in rhombohedrons. It is somewhat harder than lead, and rather brittle; masses show broad cleavage surfaces when broken across. It melts at 507° Fahr., being easily fused in the flame of a candle. It is found in a native state, and as a constituent of some minerals. Specific gravity 9.8. Atomic weight 207.5. Symbol Bi.
Note: ☞ Chemically, bismuth (with arsenic and antimony is intermediate between the metals and nonmetals; it is used in thermo-electric piles, and as an alloy with lead and tin in the fusible alloy or metal. Bismuth is the most diamagnetic substance known.
Bismuth glance, bismuth sulphide; bismuthinite.
Bismuth ocher, a native bismuth oxide; bismite.
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bismuth
n : a heavy brittle diamagnetic trivalent metallic element
(resembles arsenic and antimony chemically); usually
recovered as a by-product from ores of other metals [syn:
Bi, atomic number 83]
bismuth
Symbol: Bi
Atomic number: 83
Atomic weight: 208.980
White crystalline metal with a pink tinge, belongs to group 15. Most
diamagnetic of all metals and has the lowest thermal conductivity of all
the elements except mercury. Lead-free bismuth compounds are used in
cosmetics and medical procedures. Burns in the air and produces a blue
flame. In 1753, C.G. Junine first demonstrated that it was different from
lead.