Promethium (Q2453)
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Promethium is the chemical element with the symbol Pm and atomic number 61. The atomic mass is -145 (amu, g/mol).
Language | Label | Description | Also known as |
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English | Promethium |
Promethium is the chemical element with the symbol Pm and atomic number 61. The atomic mass is -145 (amu, g/mol). |