Promethium
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General properties | |||||
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Name, symbol | Promethium, Pm | ||||
Promethium in the periodic table | |||||
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Atomic number | 63 | ||||
Standard atomic weight (Ar) | |||||
Group, block | , -block | ||||
Period | period | ||||
Electron configuration | |||||
Physical properties | |||||
Atomic properties | |||||
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