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Protactinium and Thallium Periodic Table


Thallium and Protactinium in Periodic Table


Periodic Table

Symbol
Pa   
Tl   

Group Number
Not Available   
13   
5

Period Number
7   
6   

Block
f block   
p block   

Element Family
Actinide   
Post-​Transition   

CAS Number
7440133   
99+
7440280   
99+

Space Group Name
I4/mmm   
P63/mmc   

Space Group Number
139.00   
8
194.00   
5

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