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Erbium
Erbium

Francium
Francium



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Erbium
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Francium

Erbium and Francium Periodic Table

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Periodic Table

Symbol

Group Number

Period Number

Block

Element Family

CAS Number

Space Group Name

Space Group Number

 
Er
3
6
f block
Lanthanide
7440520
P63/mmc
194.00
 
Fr
1
7
s block
Alkali
7440735
-
225.00