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Protactinium
Protactinium

Technetium
Technetium



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Periodic Table van Protactinium en Technetium

Periodiek systeem

Symbool

Pa
Tc

Group Number

37
0 17
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periode Aantal

75
2 7
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Blok

f block
d block

element Family

actinide
Transition Metal

CAS-nummer

74401337440268
7429905 54386242
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Space Group Name

I4 / mmm
P63 / mmc

Space Group Number

139,00194,00
11 276
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