Answer:
The part of the atom from which a subatomic particle is being removed, to become an ion, and that the student should show is from the outermost energy level of the atom (option D).
Explanation:
Ions are atoms with an electric charge, caused by the gain or loss of electrons. The most external atomic orbital, or energy level, is the one that has the property to acquire or lose electrons so that an atom becomes an ion.
Whereas an electron has a negative charge, two things can happen:
In this case, the student must make a scheme that shows the subatomic particle -electron- the atom is losing comes from its outermost orbital.
Learn more:
Ions - electrons https://brainly.com/question/1038180