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Terbium
Terbium

Francium
Francium



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Terbium
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Francium

Terbium and Francium Periodic Table

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Periodic Table

Symbol

Tb
Fr

Group Number

31
0 17
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Period Number

67
2 7
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Block

f block
s block

Element Family

Lanthanide
Alkali

CAS Number

74402797440735
7429905 54386242
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Space Group Name

P63/mmc
-

Space Group Number

194.00225.00
11 276
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