Neptunium and Niobium Periodic Table
Periodic Table
Symbol
Np
Nb
Group Number
Not Available
5
13
Period Number
7
5
Block
f block
d block
Element Family
Actinide
Transition Metal
CAS Number
7439998
99+
7440031
99+
Space Group Name
Pnma
Im_ 3m
Space Group Number
62.00
11
229.00
1
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