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Fermium
Fermium

Neptunium
Neptunium



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Fermium
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Neptunium

Fermium and Neptunium Periodic Table

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Periodic Table

Symbol

Fm
Np

Group Number

33
0 17
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Period Number

77
2 7
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Block

f block
f block

Element Family

Actinide
Actinide

CAS Number

74407247439998
7429905 54386242
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Space Group Name

-
Pnma

Space Group Number

194.0062.00
11 276
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