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Lead
Lead

Samarium
Samarium



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Lead and Samarium Periodic Table

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Periodic Table

Symbol

Pb
Sm

Group Number

143
0 17
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Period Number

66
2 7
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Block

p block
f block

Element Family

Post-​Transition
Lanthanide

CAS Number

74399217440199
7429905 54386242
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Space Group Name

Fm_ 3m
R_ 3m

Space Group Number

225.00166.00
11 276
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