What must happen in order for an ion to form?

Answer 1

An ion forms when an atom with the same number of protons as electrons looses or gains one or more electrons. This gain or loss of electrons would be due to some sort of ionic bond

Answer 2

An ion forms when an atom gains or loses electrons to have a stable electron configuration. When an atom gains electrons, it forms a negatively charged ion (anion), and when it loses electrons, it forms a positively charged ion (cation).

Answer 3

An atom must lose one or more electrons in order to become a positive ion, and an atom must gain one or more electrons in order to become a negative ion.

Answer 4

a precipitate, gas, or water must form