The British physicist J. J. Thomson discovered the electron in 1897 and also ... plates and magnets as evidence of "bodies much smaller than atoms" that he ... www.chemheritage.org |
—J. J. Thomson. Thomson imagined the atom as being made up of these corpuscles orbiting in a sea of positive charge; this was his plum pudding model. en.wikipedia.org |
The plum pudding model of the atom by J. J. Thomson, who discovered the electron in 1897, was proposed in 1904 before the discovery of the atomic nucleus in ... en.wikipedia.org |