promethium
PubChem Notes:
Promethium Promethium. A radioactive element of the rare earth family of metals. It has the atomic symbol Pm, atomic number 61, and atomic weight 147. It has been used in the construction of atomic batteries, in the preparation of self-luminous compounds, and as a beta-particle source for thickness gauges.
Pm - definition from Biology-Online.org
[symbol for promethium. (Science: abbreviation) Picomolar (10-12 M). symbol for picometer.
MediLexicon Pm - Medical Dictionary Definition for Term 'Pm'
[1. Symbol for promethium.
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