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Samarium
Samarium

Promethium
Promethium



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Samarium
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Promethium

Samarium and Promethium Periodic Table

Periodic Table

Symbol

Sm
Pm

Group Number

33
0 17
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Period Number

66
2 7
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Block

f block
f block

Element Family

Lanthanide
Lanthanide

CAS Number

74401997440122
7429905 54386242
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Space Group Name

R_ 3m
-

Space Group Number

166.00194.00
11 276
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