In simple terms, that assertion is correct, but for those with an expertise in the field, the longer answer to who did it ...

Chadwick's own research focused on radioactivity. In 1919 Rutherford had discovered the proton, a positively charged particle within the atom's nucleus. But they and other researchers were finding ...

J.J. Thomson — a professor of experimental physics at the University of Cambridge, who in 1897 discovered the electron and in 1904 proposed a model of the atom — was the first person to be ...

The centenary of the discovery of the quantum atom by Niels Bohr will be celebrated at the University with an event organised by the Institute of Physics today (Saturday). The Danish physicist and ...