These are science notes on Thomson’s Atomic Model. These notes are prepared by Team “ChemistryNotesInfo“.
Thomson Atomic Model
|Thomson’s Atomic Model|
Thomson atomic model is first atomic model proposed in 1898 related to atomic structure. This model is similar to water-melon in which positive charge protons is like pulp in which negative charge electrons like seeds in water-melon, also known as pudding model. This model is called Thomson’s atomic model.
Drawback of Thomson’s atomic model
Thomson’s atomic model is unable to explain scattering experiment of Rutherford.
Thomson model of atom
=> Give by J.J Thomson (1898)
=> According to J.J. Thomson atoms posses a spherical shape with radius about 10-10 m, in which + ve charge is uniformly distributed.
=> Electrons are embedded in such a manner to give most stable electrostatic arrangement.
=> Other names of this model plum pudding raisin pudding watermelon.
=> Mass is assumed to be uniformly distributed in atom.