* Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons. This means they have the same atomic number but different atomic masses.
* Charge is determined by the balance of protons (positive charge) and electrons (negative charge).
* Ions are atoms that have gained or lost electrons, resulting in a net positive or negative charge.
Example:
* Carbon-12 and Carbon-14 are isotopes of carbon. Both have 6 protons. Carbon-12 has 6 neutrons, while Carbon-14 has 8 neutrons. They are still neutral atoms unless they gain or lose electrons.
To summarize:
* Isotopes differ in the number of neutrons, affecting their atomic mass.
* Ions differ in the number of electrons, affecting their charge.
* Isotopes themselves are not necessarily charged. They can become ions by gaining or losing electrons.
