Answer to Question #67179 in General Chemistry for MAX

Question

Homework help. When an element or ion is stable, what does the outer energy shell look like? a. all electron shells are full, b. Outer shell is missing electrons, c. all electron shells are empty, d. inner shell is missing electrons?

Answer 1

According to Bohr model, atoms that do not have full outer shells will tend to gain or lose electrons, resulting in a full outer shell and, therefore, stability.
Thus, correct answer is a – all electron shells are full.