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 ...

Dalton was hugely influential. His atomic theory now underpins the whole of modern chemistry and his work on colour blindness inspired many further studies. The scientist will then test their ...

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 ...