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Chromium
Chromium

Protactinium
Protactinium



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Chromium
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Protactinium

Chromium and Protactinium Periodic Table

Periodic Table

Symbol

Cr
Pa

Group Number

63
0 17
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Period Number

47
2 7
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Block

d block
f block

Element Family

Transition Metal
Actinide

CAS Number

74404737440133
7429905 54386242
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Space Group Name

Im_ 3m
I4/mmm

Space Group Number

229.00139.00
11 276
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