Alpha Beta and Gamma Radiations and Their Properties

Out of the two characteristics – the mass number (A) and the atomic number (Z) – of a nucleus, which one does not change during nuclear  $\beta -$ decay?

Out of the two characteristics – the mass number (A) and the atomic number (Z) – of a nucleus, which one does not change during nuclear  $\beta -$ decay?

The end product on the $\beta -$ decay of  ${}_{15}^{32}P$  is:

The end product of the ${\mathrm{\beta }}^{-}$ decay of ${}_{15}^{32}\mathrm{P}$ is

Which are amongst the following represent plot of the distribution of kinetic energy of $\beta -$ particles?

$\beta -$particle is emitted in a radio active reaction when

In which process neutron is converted into proton?

In the given nuclear reaction, the element $X$ is ${}_{11}{}^{22}\mathrm{Na}\to \mathrm{X}+{\mathrm{e}}^{+}+v$

${}_{28}{}^{59}Ni$ Nuclides are proton rich and it is observed that ${}_{28}{}^{59}Ni$ is transmutable to element ${}_{27}{}^{59}\mathrm{Co}$ via two different processes

Process$-1·{}_{28}{}^{59}Ni\to {}_{27}{}^{59}\mathrm{Co}+e^{+}+v$ (${\beta }^{+}$decay)
Process$-2·{}_{28}{}^{59}Ni+e^{-}\to {}_{27}{}^{59}\mathrm{Co}+v$-  ($K$electroncapture)
Select the correct option(s) regarding the processes mentioned above

Concept of neutrino was given by,

A ${\mathrm{U}}^{238}$ Preparation of mass $1.0\mathrm{g}$ emits $1.24 \times {10}^4$ Alpha-particles per second. Find the half-life of this nuclide and the activity of the preparation.

What is tunnel effect how tunnel effect explain alpha decay?

Tritium has a half of 12.5 y undergoing beta decay. What fraction of a sample of pure tritium will remain undecayed after 25y.

What happens to the half-life of a radioactive substance as it decays?

The rays are given off by a radioactive element from;

Alpha particles _____ penetrate into human body.

A nucleus of mass number $220$ decays by α decay. The energy released in the reaction is $5 \mathrm{MeV}$. The kinetic energy of an α-particle is:

The kinetic energy (in $\mathrm{keV}$) of the alpha particle, when the nucleus ${}_{84}{}^{210}\mathrm{Po}$ at rest undergoes alpha decay, is