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Protactinium
Protactinium

Polonium
Polonium



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Protactinium
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Periodic Table van Protactinium en Polonium

Periodiek systeem

Symbool

Pa
Po

Group Number

316
0 17
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periode Aantal

76
2 7
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Blok

f block
p block

element Family

actinide
post- Transition

CAS-nummer

74401337440086
7429905 54386242
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Space Group Name

I4 / mmm
Pm-3m

Space Group Number

139,00221,00
11 276
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