`cathode-rays` Related Article Results

An electron is a fundamental subatomic particle with a negative electric charge. It is found in orbits around the atomic nucleus or may exist freely. In the Standard Model of particle physics, it is a member of the family of particles known as leptons. It was discovered in 1897 by the British physicist Joseph John Thomson through experiments on cathode rays. This discovery overturned the prevailing belief that atoms were indivisible, creating a breakthrough in modern physics and chemistry and pa