Question

Advantages and disadvantages of bohr's atomic model

Answer 1

Explanation:

advantages

1. It explains the stability. an electron cannot lose energy as long as it states in a particular orbit. therefore the question of using energy continously and falling into the nucleus doesn't araise
2. it explain th atomic spectrum of H.
3. stationary states were numbered as n=1,2,3,...........etc .these integral number are called principle quantum numbers
4. helps to calculate the energy of the electron , radius of orbit for H atom.
5. his theory can also be applied to ions containing only one electron similar to that of hydrogen atom

it is possible to calculate velocity of electron moving in orbit

Disadvantages

1. failed to explain the spectrum of atoms other than H.
2. failed to explain the spilting of spectral line in magnetic field (zeeman effect )or electric field (stark effect ).
3. failed to explain the ability of atoms to form molecules by chemical bonds

Answer 2

Answer:

ADVANTAGES OF BOHR ATOMIC MODEL:

• The experimental value of radii and energies in a hydrogen atom is in exact settlement with that calculated on the premise of Bohr’s principle.
• Bohr’s idea of a stationary nation of electrons explains the emission and absorption spectra of hydrogen-like atoms.
• The experimental values of the spectral strains of the hydrogen spectrum are in near settlement with that calculated through Bohr’s principle.

DISADVANTAGES OF BOHR ATOMIC MODEL:

• It does now no longer explain the spectra of atoms having a couple of electrons.
• Bohr’s atomic version didn't account for the impact of the magnetic field (Zeeman Effect) or the electric field (Stark impact) at the spectra of atoms or ions. It became found that after the supply of a spectrum is located in a robust magnetic or electric field, every spectral line similarly splits into some of the strains. This remark couldn't be defined on the premise of Bohr’s version.
• De Broglie advised that electrons like mild have a twin character. It has particle and wave characteristics. Bohr dealt with the electron best as a particle.
• Another objection to Bohr’s principle got here from Heisenberg’s Uncertainty Principle. According to this principle “It is not possible to decide concurrently the exact function and momentum of a small transferring particle like an electron”. The postulate of Bohr, that electrons revolve in well-described orbits across the nucleus with well-described velocities is therefore now no longer tenable.

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