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Polonium
Polonium

Niobium
Niobium



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Polonium
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Niobium

Polonium and Niobium Periodic Table

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Periodic Table

Symbol

Group Number

Period Number

Block

Element Family

CAS Number

Space Group Name

Space Group Number

 
Po
16
6
p block
Post-​Transition
7440086
Pm-3m
221.00
 
Nb
5
5
d block
Transition Metal
7440031
Im_ 3m
229.00