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Caesium
(Cs)
3
3
3
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2
8
18
18
8
1
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Cs
Category
Alkali metal
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Relative atomic mass
132.905
Density
1.87
Melting point (°C)
28.4
Boiling point (°C)
671
Electronegativity (Pauling)
0.7
Discovery year
1860
Discovered by
Gustav Kirchhoff
Robert Bunsen
Electrons: 55
Protons: 55
Neutrons: 78
Wikipedia
created by @lukaswyss
Caesium (Cs) – Element 55
