Struktur atom saka Protaktinium lan Hafnium
Konfigurasi elektron
[Rn] 5F 2 6D 1 7s 2
[Xe] 4F 14 5d 2 6s 2
Struktur Crystal
Tetragonal (TETR)
Hexagonal Tutup dikempalken (HCP)
Crystal pola
TETR-Crystal-Structure-of-Protactinium.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