* Isotopes refer to atoms of the same element that have the same number of protons but a different number of neutrons. Aluminum can have isotopes, but the term "isotope" doesn't describe whether it's charged or not.

* Ions are atoms that have gained or lost electrons, resulting in a net positive or negative charge. Aluminum can form ions, but in its pure, elemental state, it's neutral.

In summary:

* Aluminum is an element, just like carbon, oxygen, or gold.

* Aluminum can exist as isotopes (atoms with varying neutron numbers).

* Aluminum can exist as ions (charged atoms).

* But in its pure elemental form, aluminum is a neutral atom.