The Energy of an Electron in the Hydrogen Atom Is

Multiple Choice

The energy of an electron in the hydrogen atom is determined by

A) the principal quantum number (n) only.
B) the angular momentum quantum number (l) only.
C) the principal and angular momentum quantum numbers (n & l ) .
D) the principal and magnetic quantum numbers (n & m_l) .
E) the principal, angular momentum and magnetic quantum numbers.