As part of an experiment with x-rays in 1909, Rutherford was shooting a beam of alpha particles (or alpha ... But every now and then, a particle bounced back as though it had hit something solid.

When it comes to building particle accelerators ... century when Ernest Rutherford discovered in 1919 that he could split nitrogen atoms by bombarding them with alpha particles from natural ...

Ernest Rutherford's family emigrated from England ... positively and negatively charged, or alpha and beta. He showed that every radioactive element decreases in radioactivity over a unique ...

Between 1914 and 1919 Rutherford conducted many experiments at the University by bombarding nitrogen gas with alpha particles ... that the hydrogen nucleus emitted was actually a subatomic particle, ...