Atomic Number 55

Atomic Number 55 is belong to element of Caesium.

Chemical symbol for Caesium is Cs. Number of protons in Caesium is 55. Atomic weight of Caesium is 132.905452 u or g/mol.

55Cs

Atomic Number 55 Element Properties

Atomic Number (Z)55
Atomic SymbolCs
Element NameCaesium
Group1
Period6
Atomic Weight132.905452 u
Density1.873 g/cm3
Melting Point (K)301.59 K
Boiling Point (K)944 K

List all properties of Caesium


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