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The radiations emitted from the nucleus of a radioactive element are called radioactive rays. There are three types of radioactive rays which includes alpha rays, beta rays and gamma rays. Alpha rays are deflected by electric and magnetic field and the direction of their deflection is towards negative electric field. The direction of deflection shows that they consist of positively charged particles. These rays consist of helium nuclei that is 2He4. The velocity of alpha rays depends upon the element from which they are ejected. These rays effect photographic plates and also produce fluorescence in some substances. Their power of penetration through layers of matter is very small.
Beta rays are deflected by electric and magnetic fields and their direction of deflection is towards positive electric field which indicates that they consist of negatively charged particles. Beta rays consist of fast-moving electrons. Their power of penetration through material layers is much more than alpha rays.
Gamma rays are not deflected by electric or magnetic field, so they consist of chargeless particles. They effect the photographic plate and their effect is greater than that for beta rays.
Beta rays are deflected by electric and magnetic fields and their direction of deflection is towards positive electric field which indicates that they consist of negatively charged particles. Beta rays consist of fast-moving electrons. Their power of penetration through material layers is much more than alpha rays.
Gamma rays are not deflected by electric or magnetic field, so they consist of chargeless particles. They effect the photographic plate and their effect is greater than that for beta rays.
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