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Francium
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Samarium
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Francium
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Francium and Samarium Periodic Table
Francium
Samarium
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Summary
Periodic Table
Facts
Uses
Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
All
Periodic Table
Symbol
Fr
Sm
Group Number
1
3
0
17
👆🏻
Period Number
7
6
2
7
👆🏻
Block
s block
f block
Element Family
Alkali
Lanthanide
CAS Number
7440735
7440199
7429905
54386242
👆🏻
Space Group Name
-
R_ 3m
Space Group Number
225.00
166.00
11
276
👆🏻
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