Struktur atom saka sesium lan Actinium
Konfigurasi elektron
[Xe] 6s 1
[Rn] 6D 1 7s 2
Struktur Crystal
Body tengah kubik (Bcc)
Face tengah kubik (FCC)
Crystal pola
BCC-Crystal-Structure-.jpg#100
FCC-Crystal-Structure-of-Actinium.jpg#100
pola Angles
π/2, π/2, π/2
π/2, π/2, π/2