Struktur atom saka Protaktinium lan cerium
Konfigurasi elektron
[Rn] 5F 2 6D 1 7s 2
[Xe] 4F 1 5d 1 6s 2
Struktur Crystal
Tetragonal (TETR)
Double Hexagonal Tutup dikempalken (DHCP)
Crystal pola
TETR-Crystal-Structure-of-Protactinium.jpg#100
DHCP-Crystal-Structure-of-Cerium.jpg#100
pola Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3