Iridium and Polonium Periodic Table
Periodic Table
Symbol
Ir
Po
Group Number
9
9
16
2
Period Number
6
6
Block
d block
p block
Element Family
Transition Metal
Post-Transition
CAS Number
7439885
99+
7440086
99+
Space Group Name
Fm_ 3m
Pm-3m
Space Group Number
225.00
2
221.00
3
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