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Neptunium
Neptunium
☒

Darmstadtium
Darmstadtium
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Neptunium and Darmstadtium Periodic Table

Periodic Table

Symbol

Group Number

Period Number

Block

Element Family

CAS Number

Space Group Name

Space Group Number

 
Np
3
7
f block
Actinide
7439998
Pnma
62.00
 
Ds
10
7
d block
Probably Transition
54083771
-
166.00