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Caesium

Wikipedia se
Atomic Structure
Symbol Cs
Atomic Number 55
Atomic Mass g/mol
Periodic Table
Group 1
Row / Period 6
Element Category Alkali dhaatu
Chhapa
Caesium ke electron shell


Caesium(nai toCesium) ekchemical elementhae, jiskeatomic number55, symbolCsaur atomic mass 132.91 hae. DuiGermanchemists,Robert BunsenaurGustav Kirchhoff,Caesium ke 1860 me flame spectroscopy se paawe rahin.