Definition of Rb
Noun
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a soft silvery metallic element of the alkali metal group
burns in air and reacts violently in water
occurs in carnallite and lepidolite and pollucite
rubidium - atomic number 37
Word games points for the Rb
- Scrabble® score of the rb (4)
- Word Chums® score of the rb (5)
- Words With Friends® score of the rb (5)