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Iridium
Iridium

Francium
Francium



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Iridium and Francium Periodic Table

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Periodic Table

Symbol

Ir
Fr

Group Number

91
0 17
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Period Number

67
2 7
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Block

d block
s block

Element Family

Transition Metal
Alkali

CAS Number

74398857440735
7429905 54386242
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Space Group Name

Fm_ 3m
-

Space Group Number

225.00225.00
11 276
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