Why are only alpha, beta and gamma radiation often mentioned? There are other forms of radiation.

25 minutes ago, Brainee said:

Why are only alpha, beta and gamma radiation often mentioned? There are other forms of radiation.

Because those are the common forms of radiation emitted in radioactive decay. So they were the first to be given names, before it was even known that only gamma rays are actually EM radiation, the others being particles.

42 minutes ago, Brainee said:

Why are only alpha, beta and gamma radiation often mentioned? There are other forms of radiation.

From decay, as exchemist notes, and ionizing radiation, which means potentially dangerous.