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Protactinium and Neptunium Periodic Table

Protactinium
Neptunium
Neptunium and Protactinium in Periodic Table


Periodic Table
Symbol
Pa   
Np   
Group Number
Not Available   
Not Available   
Period Number
7   
7   
Block
f block   
f block   
Element Family
Actinide   
Actinide   
CAS Number
7440133   
99+
7439998   
99+
Space Group Name
I4/mmm   
Pnma   
Space Group Number
139.00   
8
62.00   
11
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