Further research by scientists like Ernest Rutherford categorized radioactive emissions into alpha, beta, and gamma rays, ... X-Rays: The Discovery that Revolutionized Science (1895) Posted: March ...

Alpha radiation is actually an entire helium nucleus (two protons and two neutrons) splintered off larger elements. Beta radiation is an electron ejected when a proton turns into a neutron.

The use of other radiations (except X-rays), for example, alpha-and beta-rays, recoil atoms and accelerated ions for similar purposes does not seem to have been described.

They’d identified alpha, beta and gamma rays. But the nature of these rays and the internal structure of the atom itself was still a mystery. Meitner followed every new discovery and presented ...