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Protactinium
Protactinium
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Thallium
Thallium
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Protactinium
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Protactinium and Thallium Periodic Table

Periodic Table

Symbol

Group Number

Period Number

Block

Element Family

CAS Number

Space Group Name

Space Group Number

 
Pa
3
7
f block
Actinide
7440133
I4/mmm
139.00
 
Tl
13
6
p block
Post-​Transition
7440280
P63/mmc
194.00