Periodic Table of the Elements: Promethium
Periodic Table of the Elements: Promethium
Periodic Table of the Elements: Promethium
Atomic Number: | 61 |
Atomic Symbol: | Pm |
Promethium | |
Atomic Weight: | (145) |
Electron Configuration: | 2 · 8 · 18 23 · 8 · 2 |
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