H-수소He-헬륨Li-리튬Be-베릴륨B-붕소C-탄소N-질소O-산소F-플루오르Ne-네온Na-나트륨Mg-마그네슘Al--알루미늄Si-규소p-인S-황Cl-염소Ar-아르곤K-칼륨Ca-칼슘
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