Related: There's a giant mystery hiding inside every atom in the universe The Bohr model: Journey to find structure of atoms British physicist Joseph John Thomson made the first major breakthrough ...

Some atomic nuclei are unstable because the ... according to Jefferson Lab. Joseph John (J.J.) Thomson, a British physicist, discovered the electron in 1897, according to the Science History ...

But it was not until around 1803 that the first useful atomic theory of matter was introduced ... Almost a century later, another Briton - physicist Joseph Thomson - discovered the electron ...

Sir Joseph John Thomson ... Lecture in Oxford on "The atomic theory". In 1918, he became Master of Trinity College, Cambridge, where he remained until his death. Thomson died on 30 August 1940 ...