🤓 Based on our data, we think this question is relevant for Professor Calzoni's class at MDC.

We are asked to **calculate the energy (J) change** associated with an **electron transition from n = 2 to n = 5 **in a Bohr hydrogen atom.

To calculate the energy required for the electronic transition, we will use the **Bohr Equation** shown below which relates electronic transition to the energy:

$\overline{){\mathit{\Delta}}{\mathit{E}}{\mathbf{=}}{\mathbf{}}{\mathbf{-}}{{\mathit{R}}}_{{\mathbf{H}}}\left(\frac{\mathbf{1}}{{{\mathbf{n}}_{\mathbf{f}}}^{\mathbf{2}}\mathbf{}}\mathbf{-}\frac{\mathbf{1}}{{{\mathbf{n}}_{\mathbf{i}}}^{\mathbf{2}}\mathbf{}}\mathbf{}\right)}$

ΔE = energy related to the transition

R_{H} = Rydberg constant

n_{i} = initial principal energy level

n_{f} = final principal energy level

**Given values:**

Calculate the energy (J) change associated with an electron transition from n = 2 to

n = 5 in a Bohr hydrogen atom.

A) 6.5 x 10^{-19}

B) 5.5 x 10^{-19}

C) 8.7 x 10^{-20}

D) 4.6 x 10^{-19}

E) 5.8 x 10^{-53}