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Protactinium and Promethium Periodic Table

Protactinium
Promethium
Promethium and Protactinium in Periodic Table


Periodic Table
Symbol
Pa   
Pm   
Group Number
Not Available   
Not Available   
Period Number
7   
6   
Block
f block   
f block   
Element Family
Actinide   
Lanthanide   
CAS Number
7440133   
99+
7440122   
99+
Space Group Name
I4/mmm   
Not Available   
Space Group Number
139.00   
8
Not Available   
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Actinide Metals

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