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Protactinium and Francium Periodic Table

Protactinium
Francium
Francium and Protactinium in Periodic Table


Periodic Table
Symbol
Pa   
Fr   
Group Number
Not Available   
1   
17
Period Number
7   
7   
Block
f block   
s block   
Element Family
Actinide   
Alkali   
CAS Number
7440133   
99+
7440735   
18
Space Group Name
I4/mmm   
Not Available   
Space Group Number
139.00   
8
Not Available   
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