As the principal energy level increases in an atom's orbitals, the average distance of an electron energy level from the nucleus ____.
A) increases
B) decreases
C) stays the same
D) varies
E) none of these

Question

Quizplus · Accepted Answer

As the principal energy level increases, the average distance between the electron and the nucleus increases because the electron is occupying a larger orbital, which is farther away from the nucleus.

As the Principal Energy Level Increases in an Atom's Orbitals