Bohr Energy Levels
Easyphysics
Energy of nth level of hydrogen atom En equals?
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Solution
Incorrect! Answer:
-13.6/n² eV
- Bohr's Theory: According to Bohr's model for the hydrogen atom, the energy of an electron in the nth orbit is quantized.
- Energy Formula: The total energy En is given by: En=−n213.6Z2 eV
- For Hydrogen: Since Z=1 for hydrogen, the formula simplifies to: En=−n213.6 eV
- Significance: The negative sign indicates that the electron is bound to the nucleus. As n increases, the energy becomes less negative (higher energy).
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About This Question
- Subject
- physics
- Chapter
- atoms and nuclei
- Topic
- bohr energy levels
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
-13.6/n² eV
- Bohr's Theory: According to Bohr's model for the hydrogen atom, the energy of an electron in the nth orbit is quantized.
- Energy Formula: The total energy En is given by: En=−n213.6Z2 eV
- For Hydrogen: Since Z=1 for hydrogen, the formula simplifies to: En=−n213.6 eV
- Significance: The negative sign indicates that the electron is bound to the nucleus. As n increases, the energy becomes less negative (higher energy).
This easy difficulty physics question is from the chapter atoms and nuclei, covering the topic of bohr energy levels. It appeared in the 2025 exam.
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