Alpha, Beta and Gamma Rays and Their Properties

According to radioactive displacement law, when a radioactive element emits a beta particle, a daughter nucleus is formed whose mass number is less by  $4$ units and the atomic number is less by $2$ units, than the mass number and the atomic number of the parent nucleus.

State the conditions under which radioactive emissions takes place.

Penetrating power of Gamma radiation is very low.

Which of the following statements is/are correct?
i. $\alpha$ particles are photons.
ii. Penetrating power of $\gamma$ radiation is very low.
iii. Ionization power is maximum for α rays.
iv. Penetrating power of $\gamma$ radiation is very high.

In Gamma decay and Neutron decay, no change in _____ number of the daughter nuclei takes place. (proton/ mass)

In which of the following, no change in mass number of the daughter nuclei takes place?
(i) $\alpha$ decay       (ii) $\beta$ decay         (iii) $\gamma$ decay        (iv) Neutron decay

When the nucleus that undergoes disintegration during a nuclear disintegration is called a parent nucleus and the nucleus which remains after the disintegration is called daughter nucleus. This law is known as Soddy and Fajan radioactive _____ law.

Soddy and Fajan displacement law states that the nucleus that undergoes disintegration during a nuclear disintegration is called a daughter nucleus and the nucleus which remains after the disintegration is called parent nucleus.

How many beta particles are emitted when Uranium nucleus ${ }_{92}{\mathrm{U}}^{238}$ decays to${}_{82}{\mathrm{Pb}}^{206}$?

How many alpha particles are emitted when Uranium nucleus ${ }_{92}{\mathrm{U}}^{238}$ decays to${}_{82}{\mathrm{Pb}}^{206}$?

In a nuclear reaction , a nucleus ${}_{88}\mathrm{X}^{226}$ changes to another nucleus $\mathrm{Y}$ as given below.

${}_{88}\mathrm{X}^{226}\to \mathrm{Y}+\mathrm{\alpha }+\mathrm{Energy}$

What is the mass number of $\mathrm{Y}$?

In a nuclear reaction , a nucleus ${}_{88}\mathrm{X}^{226}$ changes to another nucleus $\mathrm{Y}$ as given below.

${}_{88}\mathrm{X}^{226}\to \mathrm{Y}+\mathrm{\alpha }+\mathrm{Energy}$

What is the atomic number of $\mathrm{Y}$?

When the radiation coming out from certain radioactive substance is passed through an electric field, the rays which do not deviate at all are called alpha rays.

A nucleus $\mathrm{X}$ captures a $\beta$ particle and then emits a neutron and $\mathrm{\gamma }$ ray to form $\mathrm{Y}. \mathrm{X}$ and $\mathrm{Y}$ are:-