For more details of this early work, see Alpha particle.

Alpha particles cannot even go through a few centimeters of air.

We know alpha particles can change computer memory cells randomly.

Two alpha particles and a gamma ray walk into a bar.

Nuclear spheres for making a molecular model of an alpha particle.

From this point, alpha particles can escape, and in quantum mechanics, after a certain time, they do so.

Alpha particles have little penetrating power; most cannot penetrate through human skin.

Consequently, alpha particles appear frequently on the right hand side of nuclear reactions.

This makes it possible to calculate the mass of the nucleus hit by the alpha particle.

In your lungs, alpha particles slam into tissue and cause damage.