* Protons: 35
* Neutrons: 45 (This is for the most common isotope, Bromine-80. There are other isotopes with varying numbers of neutrons)
* Electrons: 35
Explanation:
* Atomic Number: The atomic number of bromine is 35, which means it has 35 protons. The number of protons defines an element.
* Mass Number: The mass number of bromine-80 is 80. This is the sum of protons and neutrons. To find the number of neutrons, subtract the atomic number (protons) from the mass number: 80 - 35 = 45 neutrons.
* Neutral Atom: In a neutral atom, the number of protons (positive charge) always equals the number of electrons (negative charge).
Important Note: Bromine has several isotopes, meaning atoms with the same number of protons but different numbers of neutrons. The most common isotope is bromine-80, but other isotopes like bromine-79 and bromine-81 exist.
