Struktur atom saka Protaktinium lan Radium
Konfigurasi elektron
[Rn] 5F 2 6D 1 7s 2
[Rn] 7s 2
Struktur Crystal
Tetragonal (TETR)
Body tengah kubik (Bcc)
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, π/2