Prof. Thomson has calculated from the results of his experiments on very different substances that the mass of a negative corpuscle is about the five-hundredth part of the hydrogen atom.
Almost a century later, Joseph John Thomson ... model of the atom in 1911. In it, he laid out how atoms have a central, positively charged nucleus with electrons orbiting like planets around a star.
Photo: Niels Bohr's research notes for his new atomic theory Rutherford's find came from a very strange experience. Everyone at that time imagined the atom as ... Rutherford's model wasn't quite ...
There he met J.J. Thomson (who ... In 1909 he began experiments that were to change the face of physics. He discovered the atomic nucleus and developed a model of the atom that was similar to ...
BBC Bitesize A simple model of an atom shows a nucleus orbited by a number of electrons In 1803, John Dalton's atomic theory brought ... Joseph John Thomson, a fellow Mancunian working the ...