Terbium and Neptunium Periodic Table
Periodic Table
Symbol
Tb
Np
Group Number
Not Available
Not Available
Period Number
6
7
Block
f block
f block
Element Family
Lanthanide
Actinide
CAS Number
7440279
99+
7439998
99+
Space Group Name
P63/mmc
Pnma
Space Group Number
194.00
5
62.00
11
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