* Atomic Number: Chlorine's atomic number is 17. This means a neutral chlorine atom has 17 protons and 17 electrons.
* Isotopes: Chlorine-36 is an isotope of chlorine. Isotopes have the same number of protons (and thus the same atomic number) but different numbers of neutrons.
* Electrons and Isotopes: The number of electrons in an atom is determined by its atomic number. Since the atomic number doesn't change for isotopes, chlorine-36 still has 17 electrons.
Therefore, chlorine-36 has 17 electrons.
