* Sulfur's Atomic Number: Sulfur (S) has an atomic number of 16. This means a neutral sulfur atom has 16 protons.

* Protons and Electrons in a Neutral Atom: In a neutral atom, the number of protons (positive charge) is equal to the number of electrons (negative charge).

* Calculating the Charge:

* Sulfur-33 has 16 protons (positive charge).

* The particle has 18 electrons (negative charge).

* 18 electrons - 16 protons = 2 extra electrons.

* The Charge: Since there are two more electrons than protons, the particle has a charge of -2.