Final answer:
The difference in energy levels of the sodium atom can be calculated using the energy-wavelength relationship equation.
Step-by-step explanation:
The difference in energy levels of the sodium atom can be calculated using the energy-wavelength relationship given by the equation:
E = (hc) / λ
Where E is the energy, h is Planck's constant (6.626 x 10^-34 J s), c is the speed of light (3.00 x 10^8 m/s), and λ is the wavelength of the emitted light.
Substituting the given wavelength of 589 nm into the equation, we can calculate the energy difference between the initial and final states of the sodium atom.