1.

give characteristics of Alpha Beta and Gamma Rays

Answer»

Alpha,beta and gamma particles

Alpha particle

Beta particle

Gamma particle

It is a helium atom and contains two neutrons and two protons

It is an electron or a positron emitted by the decay  of  nucleus

 It is an energetic photon or light wave.

Heavier than beta and gamma particles

Much lighter than alpha particles

It is a wave unlike alpha and beta particles.

Least penetrating energy. A sheet of paper or a 3-cm layer of air is sufficient to stop them.

They can be stopped, for instance, by an aluminium sheet a few millimetres thick or by 3 metres of air.

Highest penetrating energy.Gamma waves can be stopped by a thick or dense enough layer material, with high atomic number materials such as lead or depleted uranium being the most effective form of shielding.



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