This radiation received its name — gamma-rays — simply because gamma is the third letter in the Greek alphabet after alpha and beta. Unbeknownst to Villard and his cohorts in the early 1900s ...

Further research by scientists like Ernest Rutherford categorized radioactive emissions into alpha, beta, and gamma rays, leading to the understanding of radioactive decay and the concept of half ...

After emitting an alpha or beta particle, the nucleus will often ... leaves mass number and atomic number unchanged; gamma rays produce the least ionization.

Such unstable atoms are called “radioactive atoms”. When radioactive atoms decay, they release energy in the form of ionizing radiation (for example alpha particles, beta particles, gamma rays or ...

Broser and Kallmann 1 have shown that mono-energetic alpha-particles give pulses of ... obtained when studying the pulse-height from the gamma-rays emitted by different substances.

Save guides, add subjects and pick up where you left off with your BBC account. To understand nuclear decay equations. How to measure the activity of radioactive sources. Spontaneously means that ...