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Erbium
Erbium

Samarium
Samarium



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Erbium and Samarium Periodic Table

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Periodic Table

Symbol

Er
Sm

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

74405207440199
7429905 54386242
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Space Group Name

P63/mmc
R_ 3m

Space Group Number

194.00166.00
11 276
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