Uranium and Thorium Periodic Table
Periodic Table
Symbol
U
Th
Group Number
0
18
0
18
Period Number
7
7
Block
f block
f block
Element Family
Actinide
Actinide
CAS Number
7440611
28
7440326
99+
Space Group Name
Cmcm
P63/mmc
Space Group Number
63.00
10
194.00
5
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