The particles which can be added to the nucleus of an atom without changing its chemical properties are called
Electrons
Protons
Neutrons
None of the above
(c)Neutrons are neutral particles.
$\pi $ mesons can be
The radius of a nucleus of mass number $64$ is $4.8$ fermi. Then the mass number of another nucleus having radius of $4$ fermi is $\frac{1000}{x}$, where $x$ is______.
The graph between $log\, R$ and $log\, A$ where $R$ is the nuclear radius and $A$ is the mass number is
A nucleus represented by the symbol ${ }_{Z}^{ A } X$ has
An unstable heavy nucleus at rest breaks into two nuclei which move away with velocities in the ratio of $8:27$. The ratio of the radii of the nuclei (assumed to be spherical ) is
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