Atomic and Particle Physics

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Atomic & Particle Physics

ATOM

* Greek for 'Indivisible'

* Democritus was the 1st person to prove the existence of Atoms.

DALTON'S SOLID SPHERE MODEL

* Atom is a solid sphere.

* Can combine to form molecules.

* No reference to charges within the Atom.

J.J. THOMSON'S PLUM PUDDING MODEL

* Carried out experiments and found that the atom was charged.

* Atom is positively charged Ion Sphere.

* Negative charges are embedded on the 'Positively charged sphere' like plums.

RUTHERFORD'S NUCLEAR MODEL

* Rutherford and his team carried out an Alpha scattering experiment to justify the accuracy of the plum pudding model.

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