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Learn about the discovery of Caesium (Cs) by Gustow Kirchhoff in Germany in 1860. Caesium is element 55 with an atomic weight of 132.90 g/mol, melting at 28°C. Discovered in mineral water, it belongs to Group 1, Period 6 of the periodic table.
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Discover: Gustow Kirchoff Loction:Germany Year:1860 Atomic number:55 Group:1 Period:6 Atomic weight:132.90 g/mol
It can be melt 28 °C It discovered in mineral water