Struktur atom saka thorium lan americium
Konfigurasi elektron
[Rn] 6D 2 7s 2
[Rn] 5F 7 7s 2
Struktur Crystal
Face tengah kubik (FCC)
Double Hexagonal Tutup dikempalken (DHCP)
Crystal pola
FCC-Crystal-Structure-of-Thorium.jpg#100
DHCP-Crystal-Structure-of-Americium.jpg#100
pola Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3