Question

question: when does a molecule become an ion? answer options: select one of four when it loses or gains an electron when the surrounding solution is hypertonic when the surrounding solution is hypotonic when a molecule of atp is present

Explanation:

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons. Losing an electron makes a positive ion (cation), gaining an electron makes a negative ion (anion). The other options: hypertonic/hypotonic solutions relate to osmosis (water movement), and ATP presence is about energy transfer, not ion formation.

Answer:

When it loses or gains an electron