Periodic Table of the Elements: Rubidium

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Periodic Table of the Elements: Rubidium
Atomic Number:37
Atomic Symbol:Rb
 Rubidiumrubidium
, metallic chemical element; symbol Rb; at. no. 37; at. wt. 85.4678; m.p. 38.89°C;; b.p. 686°C;; sp. gr. 1.53 at 20°C;; valence +1. Rubidium is a very soft silver-white metal.
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Atomic Weight:85.4678
Electron Configuration:2 · 8 · 18 8 · 1
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