Which element is found in nucleic acids but not in proteins? es each amino acid unique?

Phosphorus

Explanation:

Nucleic acids are among the four major biomolecules, others being proteins, carbohydrates and lipids.Nucleic acids include DNA and RNA and are made up of nucleotide bases. Nucleotide bases are made up of a sugar, phophate group and a base. Nucleic acids differ from the other three biomolecules in that they contain element phosphorus while carbohydrates, proteins and lipids does not.