Promethium
Atomic No:
61
Name:
Promethium  [prə'mi:θiəm]
Formula:
Pm
Molar Mass:
145

Promethium element has 61 protons, 84 neutrons and 61 electrons. Promethium is a solid metal at room temperature. The melting point of Promethium metal is 1042 ̊C.

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