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Polonium
Polonium

Chromium
Chromium



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Chromium

Polonium and Chromium Periodic Table

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Periodic Table

Symbol

Po
Cr

Group Number

166
0 17
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Period Number

64
2 7
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Block

p block
d block

Element Family

Post-​Transition
Transition Metal

CAS Number

74400867440473
7429905 54386242
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Space Group Name

Pm-3m
Im_ 3m

Space Group Number

221.00229.00
11 276
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