Americium and Tantalum Periodic Table
Periodic Table
Symbol
Am
Ta
Group Number
Not Available
5
13
Period Number
7
6
Block
f block
d block
Element Family
Actinide
Transition Metal
CAS Number
7440359
99+
7440257
99+
Space Group Name
P63/mmc
Im_ 3m
Space Group Number
194.00
5
229.00
1
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