Chemical Symbol: Pm
Atomic Number: 61
Atomic Mass: (145) g/mol
The only synthetic element of the lanthanide series, was first produced by Jacob A. Marinsky, Lawrence E. Glendenin, and Charles D. Coryell in 1945.
Chemical Symbol: Pm
Atomic Number: 61
Atomic Mass: (145) g/mol
The only synthetic element of the lanthanide series, was first produced by Jacob A. Marinsky, Lawrence E. Glendenin, and Charles D. Coryell in 1945.