Describe the bohr model of the atom, noting its strengths and weaknesses
Answers
Please mark me brainliest and follow me
Bohr proposed his quantized shell model of the atom and also explained how electrons can have stable orbits around the nucleus.
The energy of an electron depends on the size of the orbit and is lower for smaller orbits.
Radiation can occur only when the electron jumps from one orbit to another.
The merits (or strengths) of the Bohr's atomic model were:
1) Bohr's atomic model explained the stability of an atom.
2) According to Bohr, an electron revolving in a particular orbit cannot lose energy. Therefore, emission of radiation is not possible as long as the electron remains in one of its energy levels and hence there is no cause of insatbility in his model
3) Bohr's concept of atom explained successfully the atomic spectra of hydrogen atom. From the Bohr's atomic model, it is clear that electron can have only certain definite energy levels
The Demerits (or Weakness) of the Bohr's atomic model were:
1) Bohr's model of an atom could not account for the finer details of the hydrogen spectrum observed using sophisticated spectroscopic techniques.
2) It could not explain line spectra of atoms containing more than one electron.
3) it failed to account for the effect of magnetic field on the spectra of atoms or ions, that is splitting of spectral lines further in presence of magnetic field called as Zeeman effect.
4) Similarly it could explain the effect of electric field on the spectra of atoms (known as Stark effect)
5) It could not provide clue to explain the shapes of molecules arising out of the directional bonding between atoms.
(I took these points from SL Arora)