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Samarium
Samarium

Promethium
Promethium



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Promethium

Samarium and Promethium Periodic Table

Periodic Table

Symbol

Group Number

Period Number

Block

Element Family

CAS Number

Space Group Name

Space Group Number

 
Sm
3
6
f block
Lanthanide
7440199
R_ 3m
166.00
 
Pm
3
6
f block
Lanthanide
7440122
-
194.00