prove the existence of protons, neutrons, and alpha particles in the nucleus.
Answers
Answer:
he measured everything else in the collision and used that information to calculate the mass. For his mass measurement, Chadwick bombarded boron with alpha particles.
The discovery of protons can be attributed to Rutherford. In 1886 Goldstein discovered existence of positively charged rays in the discharge tube by using perforated cathode. These rays were named as anode rays or cannal rays.
The alpha particle was known to be very stable, and it was assumed to retain its identity within the nucleus. The alpha particle was presumed to consist of four protons
Answer:
Geiger & Marsden showed that there is a tiny, positively charged nucleus within the much larger atom. This is evidence for protons, which give the nucleus its positive charge. Chadwick received the Nobel prize for showing that neutral particles were emitted when alpha particles struck light elements like beryllium...