HIDROGENO ( H ), CLORO ( Cl ), NITROGENO ( N ), OXIGENO ( O ), SODIO ( Na ), CARBONO ( C ), CALCIO ( Ca ), PLATA ( Ag ), ORO ( Ag ) , MERCURIO ( Hg ) , PLOMO ( Pb ) , MAGNESIO ( Mg ) , HELIO ( He ), NEON ( Ne ) , LITIO ( Li ),

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