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Francium and Roentgenium Periodic Table


Roentgenium and Francium in Periodic Table


Periodic Table

Symbol
Fr  
Rg  

Group Number
1  
17
11  
7

Period Number
7  
7  

Block
s block  
d block  

Element Family
Alkali  
-  

CAS Number
7440735  
18
54386242  
1

Space Group Name
-  
-  

Space Group Number
225.00  
3
194.00  
7

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