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Polonium and Promethium Periodic Table
f
Polonium
Promethium
Promethium and Polonium in Periodic Table
Summary
Periodic Table
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Periodic Table
Symbol
Po
Pm
Group Number
16
2
Not Available
Period Number
6
6
Block
p block
f block
Element Family
Post-Transition
Lanthanide
CAS Number
7440086
99+
7440122
99+
Space Group Name
Pm-3m
Not Available
Space Group Number
221.00
3
Not Available
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