1.H(수소)2.He(헬륨)3.Li(리튬)4.Be(베릴륨)5.B(붕소).6.C(탄소)7.N(질소)8.O(산소)9.F(플로우르)10.Ne(네온)11.Na(나트륨)12.Ma(마그네슘)13.Al(알루미늄)14.Si
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