English

Write two important limitations of Rutherford's nuclear model of the atom.

Advertisements
Advertisements

Questions

Write two important limitations of Rutherford's nuclear model of the atom.

Write the limitations of Rutherford's model of the atom.

Answer in Brief
Advertisements

Solution

Important limitations of Rutherford's nuclear model of the atom are:

  1. It could not explain why atoms emit light of only discrete wavelengths. for example, could a simple atom like hydrogen, consisting of a single electron and a single proton, emit a complex spectrum of specific wavelengths.
  2. He did not say anything about the arrangement of an electron in an atom.
  3. According to Maxwell, accelerated charged particles emit electromagnetic radiation and hence an electron revolving around the nucleus should emit electromagnetic radiation. This radiation would carry energy from the motion of the electron which would come at the cost of shrinking of orbits. Ultimately the electrons would collapse in the nucleus. This was a major limitation regarding the stability of an atom.
shaalaa.com

Notes

Students should refer to the answer according to their questions.

  Is there an error in this question or solution?
2016-2017 (March) Delhi Set 1

RELATED QUESTIONS

Answer the following question, which help you understand the difference between Thomson’s model and Rutherford’s model better.

Is the average angle of deflection of α­-particles by a thin gold foil predicted by Thomson’s model much less, about the same, or much greater than that predicted by Rutherford’s model?


Answer the following question, which help you understand the difference between Thomson’s model and Rutherford’s model better.

In which model is it completely wrong to ignore multiple scattering for the calculation of average angle of scattering of α-particles by a thin foil?


In Geiger-Marsden experiment prediction was that ______.


In Geiger-Marsden experiment, actual results were ______.


Which of the following transition in a hydrogen atom emit photon of the highest frequency:


The ratio active Nude 7N13 decays 6C13 through the emission of


The Bohr model for the H-atom relies on the Coulomb’s law of electrostatics. Coulomb’s law has not directly been verified for very short distances of the order of angstroms. Supposing Coulomb’s law between two opposite charge + q1, –q2 is modified to |F| = `(q_1q_2)/((4πε_0)) 1/r^2, r ≥ R_0 = (q_1q_2)/(4πε_0) 1/R_0^2 (R_0/r)^ε, r ≤ R_0` Calculate in such a case, the ground state energy of a H-atom, if ε = 0.1, R0 = 1Å.


Draw a graph showing the variation of the number of particles scattered (N) with the scattering angle θ in the Geiger-Marsden experiment. Why only a small fraction of the particles are scattered at θ > 90°?


Differentiate between the 'distance of the closest approach' and the 'impact parameter.'


Determine the distance of the closest approach when an alpha particle of kinetic energy 3.95 MeV approaches a nucleus of Z = 79, stops and reverses its directions.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×