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Francium and Thallium Periodic Table


Thallium and Francium in Periodic Table


Periodic Table

Symbol
Fr  
Tl  

Group Number
1  
17
13  
5

Period Number
7  
6  

Block
s block  
p block  

Element Family
Alkali  
Post-​Transition  

CAS Number
7440735  
18
7440280  
99+

Space Group Name
-  
P63/mmc  

Space Group Number
225.00  
3
194.00  
7

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