Rb — synonyms, definition
1. Rb (Noun)
2 synonyms
atomic number 37 rubidium
1 definition
Rb (Noun) — 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.
2 types of
metal metallic element
3 parts of
carnallite lepidolite pollucite