Friday, 5 January 2018

What are the limitations of J.J. Thomson's model of the atom?

Answer : Thomson proposed that: an atom consists of a positively charged sphere and the electrons are
embedded in it.The negative and positive charges are equal in magnitude. So, the atom as a whole is electrically neutral.Thomson's model of the atom fails to explain Rutherford's  α-particle scattering experiment in which most of the fast moving α-particles passed straight through the gold foil.Only Some of the α-particles were deflected by the foil by small angles.Which clearly established atom has a lot of empty space and positive charge is concentrated in a very small volume within the atom.

This is an answered question from Chapter 4. Structure Of The Atom of CBSE Class 9th Science

Check for Complete Exercise Solution for Chapter 4. Structure Of The Atom | CBSE Class 9th Science

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