Q6 of 46 Page 269

We know that γ – rays are harmful radiations emitted by natural radioactive substances.

i) Which are other radiations from such substances?


ii) Tabulate the following statements as applicable to each of the above radiations


(They are electromagnetic radiation. They have high penetrating power. They are electrons. They contain neutrons)

(i). There are three types of radiations which emitted from natural Radioactive substances or elements, which are: -

Alpha rays or α-rays, beta rays or β-rays, gamma rays or γ-rays.


The first two alpha and beta rays consist of charges with them but the third one the gamma rays is made of energy only.


(ii). The table is here,



The first two alpha and beta rays consist of charges with them but the third one the gamma rays is made of energy only.


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