1alfa femenino(particle/ray) (invariable adjective) (before noun) alfa
- Gamma rays are high energy photons, often emitted together with beta or alpha radiations when the transformation has left the atom with excess energy.
- Among the commonly known alpha emitters are various isotopes of polonium, radium, thorium, uranium and all of the transuranium elements.
- Part of this energy is seen in the form of alpha radiation, which occurs in the process of alpha decay.
- Helium, a light gas, is formed during radioactive alpha decay in rock minerals.
- Similar damage is caused by the alpha recoil, which is a trace of the energy released during the alpha decay of uranium and thorium isotopes.