Caesium photograph

Caesium

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Symbol Cs
Electron configuration[Xe] 6s1
Atomic number55
Atomic mass132. 90545 u
Melting point28. 44 °C
Did you knowCesium is a member of the alkali family, which consists of elements in Group 1 (IA) of the periodic table.
Date of Reg.
Date of Upd.
ID776513
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About Caesium


Caesium is a chemical element with the symbol Cs and atomic number 55. It is a soft, silvery-golden alkali metal with a melting point of 28. 5 °C, which makes it one of only five elemental metals that are liquid at or near room temperature.

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