What are the basic properties of Cesium?
Cesium (symbol: Cs) is a alkali metal with atomic number 55. Its atomic mass is 132.91 u, and it belongs to period 6 and group 1.
Cesium (symbol: Cs) is a alkali metal with atomic number 55. Its atomic mass is 132.91 u, and it belongs to period 6 and group 1.
The electron configuration is: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶ 6s¹
Melting point: 301.59 K
Boiling point: 944.0 K
Density: 1.93 g/cm³
Biological role: No known biological role
Natural occurrence: Found in pollucite mineral