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Thallium and Radium Periodic Table


Radium and Thallium in Periodic Table


Periodic Table

Symbol
Tl   
Ra   

Group Number
13   
5
2   
16

Period Number
6   
7   

Block
p block   
s block   

Element Family
Post-​Transition   
Alkaline Earth   

CAS Number
7440280   
99+
7440144   
99+

Space Group Name
P63/mmc   
Im_ 3m   

Space Group Number
194.00   
5
229.00   
1

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