An atomic emission spectrum of hydrogen shows three wavelengths: 656.5 nm, 486.3 nm, and 434.2 nm. Assign these wavelengths to transitions in the hydrogen atom. Match the items in the left column to the appropriate blanks in the sentences on the right. AE-2.18 x 10-18 longer than equal to n=7 n=3 ΔΕ = 1.1 × 107 n=1 1 final n=2 n=8 AE-2.18 x 10-18 n=5 1 final n=4 n=6 1 initial shorter than 1 initial 1 nanitial 1 n² final The wavelengths of the three transitions are region. Therefore, it can be assumed that the electrons return to the Reset Help the wavelengths of the visual level. The difference in energy between the two levels initial and nfinal is given by the equation for 434.2nm. After calculating the energy difference using the given wavelengths, solving the equation for ninitial, and subtituting the proper values the following initial energy levels can be obtained: for 656.5nm, for 486.3nm, and

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## Hydrogen Emission Spectrum Problem

An atomic emission spectrum of hydrogen shows three wavelengths: 656.5 nm, 486.3 nm, and 434.2 nm. Assign these wavelengths to transitions in the hydrogen atom.

### Match the items in the left column to the appropriate blanks in the sentences on the right.

**Equation and Options:**

### Energy Difference Equation
\[
\Delta E = -2.18 \times 10^{-18} \left( \frac{1}{n_{\text{final}}^2} - \frac{1}{n_{\text{initial}}^2} \right)
\]

- longer than
- equal to
- \( n = 7 \)
- \( n = 3 \)

\[
\Delta E = 1.1 \times 10^7 \left( \frac{1}{n_{\text{final}}^2} - \frac{1}{n_{\text{initial}}^2} \right)
\]

- \( n = 1 \)
- \( n = 2 \)
- \( n = 8 \)

\[
\Delta E = -2.18 \times 10^{-18} \left( \frac{1}{n_{\text{initial}}^2} - \frac{1}{n_{\text{final}}^2} \right)
\]

- \( n = 5 \)
- \( n = 4 \)
- \( n = 6 \)
- shorter than

**Sentences:**

1. The wavelengths of the three transitions are ___ the wavelengths of the visual region. Therefore, it can be assumed that the electrons return to the ___ level.

2. The difference in energy between the two levels \( n_{\text{initial}} \) and \( n_{\text{final}} \) is given by the equation ___.

3. After calculating the energy difference using the given wavelengths, solving the equation for \( n_{\text{initial}} \), and substituting the proper values, the following initial energy levels can be obtained: ___ for 656.5 nm, ___ for 486.3 nm, and ___ for 434.2 nm.
Transcribed Image Text:## Hydrogen Emission Spectrum Problem An atomic emission spectrum of hydrogen shows three wavelengths: 656.5 nm, 486.3 nm, and 434.2 nm. Assign these wavelengths to transitions in the hydrogen atom. ### Match the items in the left column to the appropriate blanks in the sentences on the right. **Equation and Options:** ### Energy Difference Equation \[ \Delta E = -2.18 \times 10^{-18} \left( \frac{1}{n_{\text{final}}^2} - \frac{1}{n_{\text{initial}}^2} \right) \] - longer than - equal to - \( n = 7 \) - \( n = 3 \) \[ \Delta E = 1.1 \times 10^7 \left( \frac{1}{n_{\text{final}}^2} - \frac{1}{n_{\text{initial}}^2} \right) \] - \( n = 1 \) - \( n = 2 \) - \( n = 8 \) \[ \Delta E = -2.18 \times 10^{-18} \left( \frac{1}{n_{\text{initial}}^2} - \frac{1}{n_{\text{final}}^2} \right) \] - \( n = 5 \) - \( n = 4 \) - \( n = 6 \) - shorter than **Sentences:** 1. The wavelengths of the three transitions are ___ the wavelengths of the visual region. Therefore, it can be assumed that the electrons return to the ___ level. 2. The difference in energy between the two levels \( n_{\text{initial}} \) and \( n_{\text{final}} \) is given by the equation ___. 3. After calculating the energy difference using the given wavelengths, solving the equation for \( n_{\text{initial}} \), and substituting the proper values, the following initial energy levels can be obtained: ___ for 656.5 nm, ___ for 486.3 nm, and ___ for 434.2 nm.
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