Periodic Table van Radium en Kwik
Periodiek systeem
Symbool
Ra
Hg
Group Number
2
16
12
6
periode Aantal
7
6
Blok
s block
d block
element Family
aardalkali-
Transition Metal
CAS-nummer
7440144
99+
7439976
99+
Space Group Name
Im_ 3m
R_ 3m
Space Group Number
229,00
1
166,00
6
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