Struktur atom saka neptunium lan Hafnium
Konfigurasi elektron
[Rn] 5F 4 6D 1 7s 2
[Xe] 4F 14 5d 2 6s 2
Struktur Crystal
Orthorhombic (Orth)
Hexagonal Tutup dikempalken (HCP)
Crystal pola
ORTH-Crystal-Structure-of-Neptunium.jpg#100
BCC-Crystal-Structure-.jpg#100
pola Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
Pola C / A rasio
ora Sumadhiya