The Discovery Of The Electron :: essays research papers

The Discovery Of The ElectronThe electron was discovered in 1895 by J.J. Thomson in the form ofcathode rays, and was the first elementary particle to be identified. Theelectron is the lightest known particle which possesses an electric charge. Itsrest mass is Me 9.1 x 10 -28 g, about 1/1836 of the massof the proton or neutron.The charge of the electron is -e = -4.8 x 10-10 esu