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Francium and Cesium Periodic Table


Cesium and Francium in Periodic Table


Periodic Table

Symbol
Fr  
Cs  

Group Number
1  
17
1  
17

Period Number
7  
6  

Block
s block  
s block  

Element Family
Alkali  
Alkali  

CAS Number
7440735  
18
7440462  
40

Space Group Name
-  
Im_ 3m  

Space Group Number
225.00  
3
229.00  
2

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