Nuclei Test - 2...

$$N$$ atoms of a radioactive element emit $$n$$ number $$\alpha $$- particle per second. Mean life of the elements 

The binding energy per nucleon of iron atom is approximately.

During $$\beta^-$$ emission:

When a radioactive substance is kept in a vessel, the atmosphere around it is rich with

A nucleus of element X is represented as $$_{ 26 }^{ 56 }{ X }$$
Which is an isotope of element X?

The neutron was discovered by 

A proton and a neutron combine to give a deuterium nucleus.If $$m_{o}$$ and  $$m_{p}$$ be the mass of neutron and proton respectively, then mass of deuterium nucleus is

In a nuclear reaction some mass converts into energy. In this reaction total B.E of reactants when compared with that of products is:

$$M, M$$$$_{n}$$ and $$M$$$$_{p}$$ denotes the masses of a nucleus of $$_{Z}X^{A}$$, a neutron, and a proton respectively. If the nucleus is separated into its individual protons and neutrons then,

The nucleus finally formed in fusion of the proton in a proton cycle is that of: