Write a short note on Niels Bohr’s model. Write down the limitation of the same.
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Bohr’s model consists of a small nucleus (positively charged) surrounded by negative electrons moving around the nucleus in orbits. Bohr found that an electron located away from the nucleus has more energy, and electrons close to the nucleus have less energy.
Limitations of Bohr’s Model of an Atom
==>Bohr’s model of an atom failed to explain the Zeeman Effect (effect of magnetic field on the spectra of atoms).
==>It also failed to explain the Stark effect (effect of electric field on the spectra of atoms).
==>It violates the Heisenberg Uncertainty Principle.
==>It could not explain the spectra obtained from larger atoms.
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