Question

drawbacks of thomson s atomic model ??

Answer 1

some of the drawbacks of thomson's model of atom were : 
(1)Since the weight of an electron is about a thousandth part of a hydrogen atom, it would mean that a single atom, especially of the heavier elements, would contain many thousand electrons. But J.J. Thomson himself found that the number of electrons in an atom cannot be greatly different from the atomic weight. ... 
(2)According to this model, hydrogen can give rise to only one spectral line, contrary to t