Rubidium — synonyms, definition
1. rubidium (Noun)
2 synonyms
Rb atomic number 37
1 definition
rubidium (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