The atomic number is the same as the number of what particles?

Answer

number of proton or number of electron

Explanation:

In a neutral atom,atomic number is the number of electrons or the number of protons  while the mass number is the sum of proton and neutron in the nucleus of an atom

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.