1.수소-H2.헬륨-He3.리튬-Li4.베릴륨-Be5.붕소-B6.탄소-C7.질소-N8.산소-O9.플루오르-F10.네온-Ne11.나트륨-Na12.마그네슘-Mg13.알루미늄-Al14.규소-Si15.인-P16
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