Question

Write the limitations of:

(i) water melon model of an atom (ii) nuclear model of an atom.​

Answer 1

Answer:

Limitations of Thomson’s Atomic Model  (water melon model of an atom)

Thomson’s atomic model failed to explain how the positive charge holds on the electrons inside the atom. It also failed to explain an atom’s stability. The theory did not mention anything about the nucleus of an atom. It was unable to explain the scattering experiment of Rutherford.

Limitations of Rutherford Atomic Model (nuclear model of an atom​)

Rutherford's model was unable to explain the stability of an atom. According to Rutherford's postulate, electrons revolve at a very high speed around a nucleus of an atom in a fixed orbit.Therefore, electrons revolving around the nucleus will release electromagnetic radiation.

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