This energy diagram shows the allowed energy levels of an electron in a certain atom. (Note: the SI prefix 'zept 10-21 You can find the meaning of any SI prefix in the ALEKS Data tab.) 1400 1200- 1000 800 energy (z) 600 400 A 200 Jse this diagram to complete the table below. What is the energy of the electron in the ground state? x10 What is the energy of the electron in the first excited state? If the electron makes the transition shown by the red arrow, from C to A, will a photon be absorbed or emitted? absorbed emitted Calculate the wavelength of the photon that would be absorbed or emitted. Round your answer to 3 significant digits. nm B

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Chapter1: Chemical Foundations
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This educational resource includes an energy diagram depicting the allowed energy levels of an electron in a certain atom. It is important to note that the energy is measured in zeptojoules (zJ), where 'zepto' is a prefix indicating 10^-21.

### Energy Diagram Explained:

- **Vertical Axis (Y-Axis)**: Represents energy in zeptojoules (zJ) ranging from 0 to 1400 zJ.
- **Horizontal Lines**: Indicate specific energy levels for the electron:
  - **Energy Level A**: Ground state at 200 zJ
  - **Energy Level B**: Intermediate state at 600 zJ
  - **Energy Level C**: Higher energy state at 1200 zJ

- **Red Arrow**: Indicates a transition from energy level C (1200 zJ) down to energy level A (200 zJ). This suggests that energy is released.

### Table for Completion:

1. **What is the energy of the electron in the ground state?**
   - The answer is energy level A, which is **200 zJ**.

2. **What is the energy of the electron in the first excited state?**
   - The answer is energy level B, which is **600 zJ**.

3. **If the electron makes the transition shown by the red arrow, from C to A, will a photon be absorbed or emitted?**
   - **Emitted** (since the electron is moving to a lower energy level, releasing energy).

4. **Calculate the wavelength of the photon that would be absorbed or emitted. Round your answer to 3 significant digits.**
   - This requires additional calculation based on the energy difference and the formula relating energy to wavelength. Placeholder for answer in **nm**.

This resource provides a fundamental understanding of how electron energy levels work and guides the calculation of photon wavelength during electron transitions.
Transcribed Image Text:This educational resource includes an energy diagram depicting the allowed energy levels of an electron in a certain atom. It is important to note that the energy is measured in zeptojoules (zJ), where 'zepto' is a prefix indicating 10^-21. ### Energy Diagram Explained: - **Vertical Axis (Y-Axis)**: Represents energy in zeptojoules (zJ) ranging from 0 to 1400 zJ. - **Horizontal Lines**: Indicate specific energy levels for the electron: - **Energy Level A**: Ground state at 200 zJ - **Energy Level B**: Intermediate state at 600 zJ - **Energy Level C**: Higher energy state at 1200 zJ - **Red Arrow**: Indicates a transition from energy level C (1200 zJ) down to energy level A (200 zJ). This suggests that energy is released. ### Table for Completion: 1. **What is the energy of the electron in the ground state?** - The answer is energy level A, which is **200 zJ**. 2. **What is the energy of the electron in the first excited state?** - The answer is energy level B, which is **600 zJ**. 3. **If the electron makes the transition shown by the red arrow, from C to A, will a photon be absorbed or emitted?** - **Emitted** (since the electron is moving to a lower energy level, releasing energy). 4. **Calculate the wavelength of the photon that would be absorbed or emitted. Round your answer to 3 significant digits.** - This requires additional calculation based on the energy difference and the formula relating energy to wavelength. Placeholder for answer in **nm**. This resource provides a fundamental understanding of how electron energy levels work and guides the calculation of photon wavelength during electron transitions.
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