Why neutrons are not present in the nucleus of hydrogen?

Introduction:

The hydrogen atom is unique in the periodic table because it contains only one proton in its nucleus and no neutrons. The absence of neutrons in the nucleus of hydrogen is an interesting phenomenon that raises a question: Why are neutrons not present in the nucleus of hydrogen?

The structure of the hydrogen atom:

The hydrogen atom consists of only one proton, one electron, and no neutrons. The proton is located in the center of the atom, called the nucleus. The electron orbits around the nucleus. Since it has only one proton in its nucleus, the hydrogen atom has a very simple structure.

Neutrons and their role in the nucleus:

Neutrons are subatomic particles that are present in the nucleus of most atoms. They are electrically neutral and have a mass slightly greater than that of protons. Neutrons play a critical role in the stability of the nucleus. The number of neutrons in an atom's nucleus determines its isotopic identity and affects its chemical properties.

The reason behind the absence of neutrons in the nucleus of hydrogen:

The answer to why neutrons are not present in the nucleus of hydrogen lies in the fact that hydrogen is the simplest and lightest element in the periodic table. Its nucleus contains only one proton, which is enough to hold the electron in orbit around it. The addition of a neutron would change the hydrogen atom's identity, making it a different element altogether.

In hydrogen, the repulsive force between two protons is negligible because of the large distance between them. Therefore, there is no need for a neutron to stabilize the nucleus, as it is already stable with just one proton.

Conclusion:

In conclusion, the absence of neutrons in the nucleus of hydrogen is due to the simplicity of the element's structure. Hydrogen has the lightest and simplest nucleus, consisting of only one proton, which is sufficient to hold the electron in orbit around it. The addition of a neutron would change the hydrogen atom's identity, making it a different element with different chemical properties.

Hydrogen (mass number is 1) doesn't have neutrons but one proton as it is stable because there in no interaction attempting to blow the nucleus a part.
In deuterium (mass number is 2) there is one neutron and one proton so the nucleus doesn't blow a part because of weak interactions.