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Calcium
Calcium

Protactinium
Protactinium



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Protactinium

Periodic Table van Calcium en Protactinium

Periodiek systeem

Symbool

Ca
Pa

Group Number

23
0 17
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periode Aantal

47
2 7
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Blok

s block
f block

element Family

aardalkali-
actinide

CAS-nummer

74407027440133
7429905 54386242
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Space Group Name

Fm_ 3m
I4 / mmm

Space Group Number

225,00139,00
11 276
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