(5) All the above statements are Which one of the following could be the chloride of the element, M of atomic number 40, containing the highest percentage of Chlorine ? (1) MCI, (2) MCI (3) MCHA (4) MCI (5) MCI Which one of the following statements concerning atomic spectra is true ?​

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.