What is the change in energy of the hydrogen atom when it undergoes an electronic transition from n_initial = 5 to n_final = 2?

Question

Quizplus · Accepted Answer

We can use the formula for energy change in electronic transition:
ΔE = -Rh[(1/nf^2) - (1/ni^2)]
where Rh is the Rydberg constant and nf and ni are the final and initial energy levels, respectively.
Plugging in the given values, we get:
ΔE = - (2.18 x 10^-18 J)(1/2^2 - 1/5^2)
ΔE = -4.57 x 10^-19 J
Since the energy change is negative, we can say that energy is released by the atom during this transition. 
The correct option is B.

What Is the Change in Energy of the Hydrogen Atom ×\times×

What Is the Change in Energy of the Hydrogen Atom $\times$