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2. An element's atomic number is equal to
A. the number of protons in its nucleus.
B. the number of neutons in its nucleus.
C. the number of protons and electrons in its nucleus.
D. the number of protons and neutrons in its nucleus.
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Ibelieve your answer is true 

Answer    "a salt" would be the best answerexplanationsalts can be defined as ionic compounds that are neither acids nor bases. nacl is an example of a salt, and its ionic.an enzyme is an organic compound which is covalently bonded, not ionically bonded.acids are generally held together by covalent bondsan element does not need any bonds to exist