Electron Discovery's Role in Thomson's Model
The development of J.J. Thomson's atomic model was a direct consequence of his groundbreaking discovery of a new subatomic particle.
In 1897, through experiments with cathode rays, J.J. Thomson identified and characterized the electron. He determined it was a negatively charged particle with a very small mass compared to the atom itself.
This discovery was pivotal. Thomson proposed his "plum pudding" model of the atom shortly after, suggesting the atom consisted of a sphere of positive charge with these newly discovered electrons embedded within it, much like plums in a pudding. Therefore, the discovery of the electron directly led to the formulation of Thomson's model.
Important Questions from Structure of Atom
α particles are doubly charged ions of ________.
Which non-metal among the following is poly-atomic?
The elements belonging to the same group of periodic table have the same-
The sum of the total number of protons and neutrons present in the nucleus of an atom is known as-
A chemical equation is said to be balanced if number of ________.
