Chemical element (Pm) name

name: name
atomic number: 61
per shell: 2, 8, 18, 23, 8, 2
electron configuration: [Xe] 4f5 6s2
atomic weight: [145]
period: 6
group: lan
block: f-block
phase:
Element category: lanthanide

atomic emission spectrum:

Oxidation state: +2,+3

Van der Waals radius:

Crystal structure:

double hexagonal_close-packed

Nd Pm=> Sm