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Polonium
Polonium

Neptunium
Neptunium



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Periodic Table van Polonium en Neptunium

Periodiek systeem

Symbool

Po
Np

Group Number

163
0 17
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periode Aantal

67
2 7
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Blok

p block
f block

element Family

post- Transition
actinide

CAS-nummer

74400867439998
7429905 54386242
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Space Group Name

Pm-3m
Pnma

Space Group Number

221,0062,00
11 276
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