Struktur atom dari promethium dan Nikel
Konfigurasi elektron
[Xe] 4f5 6s2
[Ar] 3d8 4s2 Or [Ar] 3d9 4s1
Struktur kristal
Ganda Hexagonal Tutup Dikemas (DHCP)
Wajah Centered Cubic (FCC)
kristal Lattice
DHCP-Crystal-Structure-of-Promethium.jpg#100
FCC-Crystal-Structure-of-Nickel.jpg#100
kisi Angles
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π/2, π/2, π/2