Radium and Yttrium Periodic Table
Periodic Table
Symbol
Ra
Y
Group Number
2
16
3
15
Period Number
7
5
Block
s block
d block
Element Family
Alkaline Earth
Transition Metal
CAS Number
7440144
99+
7440655
25
Space Group Name
Im_ 3m
P63/mmc
Space Group Number
229.00
1
194.00
5
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