rho·di·um /ˈrodiəm/
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rho·di·um /ˈrodɪəm/ 名詞
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Rho·di·um n. Chem. A rare element of the light platinum group. It is found in platinum ores, and obtained free as a white inert metal which it is very difficult to fuse. Symbol Rh. Atomic weight 104.1. Specific gravity 12.
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rhodium
n : a white hard metallic element that is one of the platinum
group and is found in platinum ores; used in alloys with
platinum [syn: Rh, atomic number 45]
rhodium
Symbol: Rh
Atomic number: 45
Atomic weight: 102.905
Silvery white metallic transition element. Found with platinum and used in
some platinum alloys. Not attacked by acids, dissolves only in aqua regia.
Discovered in 1803 by W.H. Wollaston.