* Atomic Number: Bromine (Br) has an atomic number of 35. This means a neutral bromine atom has 35 protons.
* Neutral Atoms: In a neutral atom, the number of protons (positive charge) is equal to the number of electrons (negative charge).
* Isotopes: The number "82" in bromine-82 refers to the mass number (protons + neutrons). Isotopes of an element have the same number of protons but different numbers of neutrons.
Therefore, bromine-82, like all bromine atoms, has 35 electrons.