* Atomic Number: Sulfur's atomic number is 16. This means a neutral sulfur atom has 16 protons.

* Isotopes: Isotopes of an element have the same number of protons but different numbers of neutrons. The "36" in sulfur-36 refers to its mass number (protons + neutrons).

* Electrons: In a neutral atom, the number of electrons is equal to the number of protons.

Therefore, sulfur-36 has 16 electrons.