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Lead and Protactinium Periodic Table


Protactinium and Lead in Periodic Table


Periodic Table

Symbol
Pb  
Pa  

Group Number
14  
4
3  
15

Period Number
6  
7  

Block
p block  
f block  

Element Family
Post-​Transition  
Actinide  

CAS Number
7439921  
99+
7440133  
99+

Space Group Name
Fm_ 3m  
I4/mmm  

Space Group Number
225.00  
3
139.00  
11

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