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| name |
Cesium |
| latin |
Caesium |
| french |
Césium |
| german |
Caesium |
| symbol |
Cs |
| proton number |
55 |
| atomic weight |
132.90545 |
| Pauling electronegativity |
0.79 |
| electronic configuration |
[Xe] 6s1
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| melting point |
301.59 K, 28.44°C, 83.19°F |
| boiling point |
944 K, 671°C, 1240°F |
| group |
1 |
| period |
6 |
| state (by 20°C) |
solid |
| oxidation states |
+1 |
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|
Discoverer
| Year of discovery |
Discoverers |
| 1860 |
Robert W. Bunsen (1811-1899)
Gustav R. Kirchhoff (1824-1887) |
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Czech version