Chromium and Samarium Periodic Table
Periodic Table
Symbol
Cr
Sm
Group Number
6
12
Not Available
Period Number
4
6
Block
d block
f block
Element Family
Transition Metal
Lanthanide
CAS Number
7440473
39
7440199
99+
Space Group Name
Im_ 3m
R_ 3m
Space Group Number
229.00
1
166.00
6
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