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Actinium and Iridium Periodic Table


Iridium and Actinium in Periodic Table


Periodic Table

Symbol
Ac  
Ir  

Group Number
3  
15
9  
9

Period Number
7  
6  

Block
f block  
d block  

Element Family
Actinide  
Transition Metal  

CAS Number
7440348  
99+
7439885  
99+

Space Group Name
Fm_ 3m  
Fm_ 3m  

Space Group Number
225.00  
3
225.00  
3

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Actinide Series

Actinide Series

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