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Protactinium
Protactinium
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Radium
Radium
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Periodic Table van Protactinium en Radium

Periodiek systeem

Symbool

Group Number

periode Aantal

Blok

element Family

CAS-nummer

Space Group Name

Space Group Number

 
Pa
3
7
f block
actinide
7440133
I4 / mmm
139,00
 
Ra
2
7
s block
aardalkali-
7440144
Im_ 3m
229,00