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Rubidium
Rubidium

Francium
Francium



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Rubidium
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Francium

Rubidium and Francium Periodic Table

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Periodic Table

Symbol

Rb
Fr

Group Number

11
0 17
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Period Number

57
2 7
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Block

s block
s block

Element Family

Alkali
Alkali

CAS Number

74401777440735
7429905 54386242
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Space Group Name

Im_ 3m
-

Space Group Number

229.00225.00
11 276
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