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Popularly known as the plum pudding model, it had to be abandoned (1911) on both theoretical and experimental grounds in favour of the Rutherford atomic model, in which the electrons describe orbits about a tiny positive nucleus. See also atomic model.
- The Editors of Encyclopaedia Britannica
The plum pudding model is an obsolete scientific model of the atom. It was first proposed by J. J. Thomson in 1904 [1] following his discovery of the electron in 1897 and subsequently rendered obsolete by Ernest Rutherford 's discovery of the atomic nucleus in 1911.
Following the discovery of the electron, J.J. Thomson developed what became known as the "plum pudding" model in 1904. Plum pudding is an English dessert similar to a blueberry muffin. In Thomson's plum pudding model of the atom, the electrons were embedded in a uniform sphere of positive charge, like blueberries stuck into a muffin.
Concepts of Thomson's atomic model along with the postulates and drawbacks. Plum pudding model by J.J Thomson, atomic structure pdf. Visit to learn more and get downloadable files.
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- It was discarded because he was unable to precisely account for the stability of the atom. He proposed that electrons are distributed in the atom i...
- The following are the characteristics of the Thomson model of an atom: (i) An atom is made up of a positively charged sphere in which electrons ar...
- According to Thomson’s atomic model, an atom is made up of a positively charged sphere into which negatively charged electrons are implanted. Becau...
- The model was compared to a watermelon because the red edible part of a watermelon was compared to the sphere with a positive charge, and the black...
- His model lacked a nucleus, protons, and neutrons.
Jun 18, 2023 · A plum pudding model is a historical scientific model of the atom that was proposed by J.J. Thomson in 1904, shortly after he discovered the electron. The model tried to explain two properties of atoms that were known at that time: electrons are negatively charged particles, and atoms have no net electric charge.
1. Who came up with the plum pudding model? J. J. Thomson created the plum pudding model. 2. Is the plum pudding model correct? While the plum pudding model was the first to suggest that atoms are made up of charged particles, the plum pudding model is not entirely correct.
Jan 19, 2016 · Based on its appearance, which consisted of a “sea of uniform positive charge” with electrons distributed throughout, Thompson’s model came to be nicknamed the “Plum Pudding Model”....
