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Radium
Radium

Chromium
Chromium



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Chromium

Radium and Chromium Periodic Table

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Periodic Table

Symbol

Ra
Cr

Group Number

26
0 17
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Period Number

74
2 7
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Block

s block
d block

Element Family

Alkaline Earth
Transition Metal

CAS Number

74401447440473
7429905 54386242
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Space Group Name

Im_ 3m
Im_ 3m

Space Group Number

229.00229.00
11 276
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