Periodic Table van Radium en Beryllium
Periodiek systeem
Symbool
Ra
Be
Group Number
2
16
2
16
periode Aantal
7
2
Blok
s block
s block
element Family
aardalkali-
aardalkali-
CAS-nummer
7440144
99+
7440417
99+
Space Group Name
Im_ 3m
P63 / mmc
Space Group Number
229,00
1
194,00
5
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