Advantages of Bohr atomic model over Rutherford model?
**Advantages of Bohr Atomic Model over Rutherford Model**
The Bohr atomic model, proposed by Niels Bohr in 1913, was an improvement over the Rutherford model of the atom. It incorporated certain new concepts and explanations that addressed some of the limitations of the Rutherford model. The advantages of the Bohr atomic model over the Rutherford model are as follows:
**1. Explanation of Atomic Spectra:**
- The Rutherford model failed to explain the observed atomic spectra, where atoms emit or absorb light at specific wavelengths.
- In contrast, the Bohr model successfully explained the discrete atomic spectra by proposing that electrons in an atom occupy specific energy levels or orbits.
- According to Bohr, when an electron transitions from a higher energy level to a lower one, it emits energy in the form of light. The emitted light corresponds to a specific wavelength, thus explaining the atomic spectra.
**2. Stability of Atoms:**
- Rutherford's model depicted electrons orbiting the nucleus in a manner similar to planets orbiting the Sun.
- However, according to classical electromagnetic theory, accelerating charged particles emit radiation and lose energy. Consequently, the electrons would spiral into the nucleus, causing atoms to be unstable.
- Bohr addressed this issue by proposing that electrons can only exist in specific energy levels or orbits. These orbits have fixed energies and do not emit radiation. This concept of quantized energy levels provided stability to the atom.
**3. Explanation of Line Spectra:**
- The Rutherford model could not explain why elements emit light at specific wavelengths, resulting in line spectra.
- In the Bohr model, the electrons can only occupy certain energy levels, and when they transition between these levels, they emit or absorb energy in the form of photons with specific wavelengths.
- This explanation accounted for the observed line spectra of elements and provided a better understanding of their atomic structure.
**4. Quantization of Angular Momentum:**
- Rutherford's model did not account for the quantization of angular momentum in the atom.
- Bohr's model introduced the concept of quantized angular momentum, stating that the angular momentum of an electron is quantized and can only take certain discrete values.
- This concept explained various experimental observations and was consistent with the quantized energy levels proposed by Bohr.
**5. Predictive Power:**
- The Bohr model's ability to explain atomic spectra and the stability of atoms led to its success in predicting the behavior of atoms in various situations.
- It provided a framework for understanding the behavior of electrons in atoms and laid the foundation for further advancements in atomic theory.
In conclusion, the Bohr atomic model overcame several limitations of the Rutherford model by explaining atomic spectra, providing stability to atoms, explaining line spectra, introducing the concept of quantized angular momentum, and demonstrating strong predictive power. These advantages made the Bohr model a significant advancement in our understanding of atomic structure.
Advantages of Bohr atomic model over Rutherford model?
Bhor's model tells us about energy level of each orbits which is not configured by Rutherford's model..
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