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Thulium and Actinium Periodic Table


Actinium and Thulium in Periodic Table


Periodic Table

Symbol
Tm  
Ac  

Group Number
3  
15
3  
15

Period Number
6  
7  

Block
f block  
f block  

Element Family
Lanthanide  
Actinide  

CAS Number
7440304  
99+
7440348  
99+

Space Group Name
P63/mmc  
Fm_ 3m  

Space Group Number
194.00  
7
225.00  
3

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Lanthanide Series

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