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Francium and Promethium Periodic Table

Francium
Promethium
Promethium and Francium in Periodic Table


Periodic Table
Symbol
Fr   
Pm   
Group Number
1   
17
Not Available   
Period Number
7   
6   
Block
s block   
f block   
Element Family
Alkali   
Lanthanide   
CAS Number
7440735   
18
7440122   
99+
Space Group Name
Not Available   
Not Available   
Space Group Number
Not Available   
Not Available   
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