Atoms are most likely to form ions when they
A) have an even number of electrons in their outer shells
B) have a nearly empty outer shell
C) have an odd number of electrons in their outer shells
D) have four electrons in their outer shells

Question

Quizplus · Accepted Answer

Atoms are most likely to form ions when they have a nearly empty outer shell. This occurs when the atom is close to achieving a full octet (8 electrons in the outermost shell) or a full duet (2 electrons in the outermost shell). Atoms with a nearly empty outer shell will readily lose or gain electrons in order to achieve a stable electron configuration.

Atoms Are Most Likely to Form Ions When They