bohemium
bohemium
(bōhē`mēəm), former name of the chemical element rheniumrhenium, metallic chemical element; symbol Re; at. no. 75; at. wt. 186.207; m.p. about 3,180°C;; b.p. about 5,625°C;; sp. gr. 21.02 at 20°C;; valence −1, +2, +3, +4, +5, +6, or +7. Rhenium is a very dense, high-melting, silver-white metal.
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