The energy (J)required for an electronic transition in a Bohr hydrogen atom from n = 1 to n = 3 is ________ J. A)-8.90 × 10^-1 B)3.00 × 10^-19 C)-3.00 × 10^-19 D)1.94 × 10^-18 E)8.90 × 10^-1

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Quizplus · Accepted Answer

The energy required for an electronic transition in a Bohr hydrogen atom can be calculated using the formula for the energy difference between two levels: $\Delta E = -13.6 \times \left( \frac{1}{n_f^2} - \frac{1}{n_i^2} \right) $ eV, where $n_f$ is the final energy level and $n_i$ is the initial energy level. Converting this energy from eV to joules (using 1 eV = $1.602 \times 10^{-19}$ J) for the transition from $n = 1$ to $n = 3$ gives a positive value, indicating energy absorption, which matches the magnitude of choice D.

The Energy (J)required for an Electronic Transition in a Bohr