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 them into scientific view, but the Manchester scientist was ...

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 ...

In simple terms, that assertion is correct, but for those with an expertise in the field, the longer answer to who did it first is almost as complex as the science involved. After all, as particle ...