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 ...

There was little change in the understanding of the atom until John Dalton (1766-1844), an English ... In 1913, Niels Bohr revised Rutherford's model by suggesting that the electrons orbited ...

The scientist John Dalton carried out a series ... Changes to the atomic model Atoms can be broken down into smaller parts. An atom is made of tiny negatively charged electrons dotted about ...

When Donald Trump claimed US scientists split the atom in his inaugural speech ... with their name being derived from the Ancient Greek word for indivisible. In 1803, John Dalton's atomic theory ...