The alpha ray carries a positive charge of double the ionic amount.
Such is a brief summary of the climax of radioactive discovery:—the birth, life and death of the alpha ray.
But in point of fact the ionisation due to an alpha ray is sui generis.
The fundamental criterion of radioactive change is the expulsion of the alpha ray.
This is due to the bombardment of the zinc sulphide by a type of ray called the alpha ray.
alpha ray n.
A stream of alpha particles or a single high-speed alpha particle.
|alpha ray |
A stream of alpha particles.