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Roentgenium
Roentgenium

Americium
Americium



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Roentgenium
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Americium

Roentgenium and Americium Periodic Table

Periodic Table

Symbol

Group Number

Period Number

Block

Element Family

CAS Number

Space Group Name

Space Group Number

 
Rg
11
7
d block
-
54386242
-
194.00
 
Am
10
7
f block
Actinide
7440359
P63/mmc
194.00