When a hydrogen electron is in its ground state, its principal quantum number is
A) zero.
B) -13.6 eV.
C) 1.
D) +13.6 eV.
E) none of these.

Question

Quizplus · Accepted Answer

The principal quantum number, denoted as n, defines the energy level of an electron in an atom. For a hydrogen electron in its ground state, the principal quantum number is 1, indicating the electron is in the closest orbit to the nucleus.

When a Hydrogen Electron Is in Its Ground State, Its