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Francium and Protactinium Periodic Table

Francium
Protactinium
Protactinium and Francium in Periodic Table


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