Consider an atom of the alkali metal Potassium.
a) In the energy diagram given, fill in the required number of electrons for a potassium atom and name the occupied orbitals.
b) The valence electron of potassium can be excited to the next highest energy state in the same valence shell. Below, show how the energy level diagram for the excited atom of potassium has changed. Make sure to name all occupied orbitals.