Atomic Number 55 — synonyms, definition
1. atomic number 55 (Noun)
3 synonyms
Cs caesium cesium
1 definition
atomic number 55 (Noun) — A soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal.
2 types of
metal metallic element
2 types
caesium 137 cesium 137
1 part of
pollucite