The presence of electrons outside the nucleus and the nucleus at the centre of the atom was suggested by:

  • A
    Electrons by $J.J.$ Thomson and nucleus by $E.$ Rutherford
  • B
    Electrons by $J.J.$ Thomson and nucleus by $E.$ Goldstein
  • C
    Electrons by $J.N.$ Lockyer and nucleus by $E.$ Rutherford
  • D
    Electrons by $E.$ Rutherford and nucleus by $J.J.$ Thomson

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