Even the label "atom" gives this impression, given that it's derived from the Greek word "atomos," meaning "indivisible." But that year, University of Cambridge physicist Joseph John Thomson ...

In 1899, Thomson published a description of his version of the atom, commonly known as the "plum pudding model." An excerpt of this paper is found on the Chem Team site. Thomson's model of the ...

The experiments of the lecturer were made with the view of ascertaining the mass ... the attraction that binds the remainder to the atom. Prof. Thomson has calculated from the results of his ...

Others thought the rays were streams of particles. J.J. Thomson decided to find out for sure. Thomson was a physics professor at Cambridge University in the UK. He placed cathode tubes in electric ...