Periodic Table
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GroupPeriod
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
GroupPeriodSeries
IAB
IIAB
IIIAB
IVAB
VAB
VIAB
VIIAB
VIIIAB
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
9
10
11
Higher oxides
R2O
RO
R2O3
RO2
R2O5
RO3
R2O7
RO4
Volatile hydrogen compounds
RH4
RH3
RH2
RH