* Protons: Positively charged particles found in the nucleus of an atom.
* Neutrons: Neutral particles (no charge) also found in the nucleus.
* Electrons: Negatively charged particles orbiting the nucleus.
Charge is determined by the balance of protons and electrons:
* Neutral atom: An atom with an equal number of protons and electrons has a neutral charge.
* Positive ion: An atom that has lost electrons has more protons than electrons, resulting in a positive charge.
* Negative ion: An atom that has gained electrons has more electrons than protons, resulting in a negative charge.
The number of neutrons affects the atom's isotope, but not its overall charge. Isotopes are atoms of the same element with different numbers of neutrons.
In summary: The number of protons determines an atom's atomic number and its elemental identity. The difference between protons and electrons determines its charge. The number of neutrons does not directly affect the charge.
