What determines the atomic number of an atom? . a.. the number of neutrons in two atoms of an element. b.. the number of electrons in the outer layer of any atom. c.. the number of protons in every atom of an element. d.. the number of protons plus the number of neutrons in an atom.

im pretty sure its b

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.