The plum pudding model of the atom was created by the British physicist J. J. Thomson in the early 1900s.

Quick Scoop

  • The plum pudding model was proposed by J. J. Thomson around 1904, after his discovery of the electron in 1897.
  • In this model, the atom was imagined as a sphere of positive charge with negatively charged electrons embedded in it, like raisins in a pudding.
  • The model was an important step in atomic theory but was later replaced by Rutherford’s nuclear model after the gold-foil experiment showed atoms have a small, dense nucleus.

In short: when someone asks “who created the plum pudding model?” the standard answer in textbooks and exams is J. J. Thomson.

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