The discoveries of electrons,
Protons and neutrons, each with mass approximately one atomic mass unit, are ... In previous years Rutherford had discovered that the hydrogen nucleus ...
The way this happened was a gradual process, and that is why it is hard to say
Experiments by J.J. Thomson in 1897 led to the
Shortly thereafter, a third form of radiation, named gamma (g) rays, was
1.3 Properties of cathode ray particle; 1.4 Millikan Oil Drop Experiment; 1.5 What
we have learned. 2
The Electron was discovered in 1896, by the British physicist J. J. Thomson, ...
It is remarkable that the neutron was not