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Radium
Radium

Thorium
Thorium



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Thorium

Periodic Table van Radium en Thorium

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Periodiek systeem

Symbool

Ra
Th

Group Number

20
0 17
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periode Aantal

77
2 7
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Blok

s block
f block

element Family

aardalkali-
actinide

CAS-nummer

74401447440326
7429905 54386242
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Space Group Name

Im_ 3m
P63 / mmc

Space Group Number

229,00194,00
11 276
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