Thorium and Lead Periodic Table
Periodic Table
Symbol
Th
Pb
Group Number
0
18
14
4
Period Number
7
6
Block
f block
p block
Element Family
Actinide
Post-Transition
CAS Number
7440326
99+
7439921
99+
Space Group Name
P63/mmc
Fm_ 3m
Space Group Number
194.00
5
225.00
2
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