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Protactinium
Protactinium

Fermium
Fermium



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Protactinium
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Fermium

Periodic Table van Protactinium en Fermium

Periodiek systeem

Symbool

Pa
Fm

Group Number

33
0 17
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periode Aantal

77
2 7
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Blok

f block
f block

element Family

actinide
actinide

CAS-nummer

74401337440724
7429905 54386242
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Space Group Name

I4 / mmm
-

Space Group Number

139,00194,00
11 276
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