Group 1 2 13 14 Period; 1 1 H 1.008 Hydrogen 2 3 Li 6.94 Lithium 4 Be 9.0122 Beryllium 5 B 10.81 Boron 6 C 12... 3 11 Na 22.990 Sodium 12 Mg 24.305 Magnesium 13 Al 26.982 Aluminium 14 Si 2...
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