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Samarium
Samarium

Roentgenium
Roentgenium



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Samarium
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Roentgenium

Samarium and Roentgenium Periodic Table

Periodic Table

Symbol

Sm
Rg

Group Number

311
0 17
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Period Number

67
2 7
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Block

f block
d block

Element Family

Lanthanide
-

CAS Number

744019954386242
7429905 54386242
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Space Group Name

R_ 3m
-

Space Group Number

166.00194.00
11 276
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