Struktur atom dari Samarium dan promethium
Konfigurasi elektron
[Xe] 4f6 6s2
[Xe] 4f5 6s2
Struktur kristal
Rhombohedral (RHO)
Ganda Hexagonal Tutup Dikemas (DHCP)
kristal Lattice
RHO-Crystal-Structure-of-Samarium.jpg#100
DHCP-Crystal-Structure-of-Promethium.jpg#100
kisi Angles
π/2, π/2, 2 π/3
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