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Promethium
Promethium

Actinium
Actinium



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Promethium
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Actinium

Promethium and Actinium Periodic Table

Periodic Table

Symbol

Group Number

Period Number

Block

Element Family

CAS Number

Space Group Name

Space Group Number

 
Pm
3
6
f block
Lanthanide
7440122
-
194.00
 
Ac
3
7
f block
Actinide
7440348
Fm_ 3m
225.00