Which of the following is true about cations?

Cations are positively charged ions that form when an atom or molecule loses one or more electrons. This loss of electrons results in a higher number of protons than electrons, thus giving the cation a net positive charge. For instance, when sodium (Na) loses one electron, it becomes sodium ion (Na⁺), indicating that it has lost an electron and has a positive charge.

The other statements do not accurately describe cations, as they either refer to gaining electrons, which creates anion (negatively charged ions), or they suggest neutrality, which cations do not possess. Thus, the defining characteristic of cations is the loss of electrons leading to a positive charge.