1 Certain companies also require that a CPA have a master's degree. 2  Increase your job prospects by getting a master's in either finance or accounting. 3  These programs typically take one or two years to complete. 4  Some states allow prospective candidates to substitute relevant work experience for a bachelor's degree.
The Discovery of the Electrons [edit]. The Electron was discovered in 1896, by the British physicist J. J. Thomson, using a cathode rays while doing discharge tube experiments. Thomson also determined e/m, ratio of the charge e to the mass m of the material particle which constituted these rays.
In 1911 the existence of the atomic nucleus was discovered by  Ernest Rutherford through his interpretation of the gold foil  experiment conducted two years earlier by Hans â¦ Geiger and Ernest  Marsden.In 1932 Dmitry Ivanenko proposed the proton-neutron model  of the nucleus. Answered.In Science.he familiar alpha particle scattering by thin gold foil experiment has given evidence for the existence of hard nucleus at the central region of the atom.