Answer:
The net charge will be -2
Step-by-step explanation:
Atoms are composed of several types of particles, among which are:
Neutrons: They have no electric charge, that is to say that their charge is zero, and they are part of the nucleus of the atom. The charge of a neutron is 0.
Protons They have a positive electrical charge and, together with the neutrons, constitute the nucleus of the atom. The charge of a proton is +1.
Electrons They have negative electrical charge and revolve around the nucleus of the atom. The charge of an electron is −1.
The total charge of an atom depends on the number of protons (with positive charges) and electrons (with negative charges) that compose it. For example, by joining a proton and an electron, a 0 charge is obtained, because the positive charge of the proton is canceled with the negative charge of the electron. So, the total charge of an atom is the sum of the number of protons and electrons.
So, in this case, if the sulfur ion has 16 protons and 18 electrons, the net charge will be the sum of 16 positive charges and 18 negative charges, resulting in a net charge of -2.