What is the charge on an ion with 21 protons, 30 neutrons, and 18 electrons. A.) 2+
B.) 3+
C.) 4+
D.) 4-

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