Lead and Actinium Periodic Table
Periodic Table
Symbol
Pb
Ac
Group Number
14
4
Not Available
Period Number
6
7
Block
p block
f block
Element Family
Post-Transition
Actinide
CAS Number
7439921
99+
7440348
99+
Space Group Name
Fm_ 3m
Fm_ 3m
Space Group Number
225.00
2
225.00
2
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