Group 1 2 13 14 15 16 17 1 1; H; 1.008 2 3; Li; 6.94 4; Be; 9.012 5; B; 10.81 6; C; 12.01 7; N; 14.01 8; O; 16.00 9... 3 11; Na; 22.99 12; Mg; 24.31 13; Al; 26.98 14; Si; 28.09 15; P; 30.97 16; S; 32.06 17...
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