protons r +ve and nuetrons r nuetral then how come protons dont repel each other in a nucleus of an atom?

Question

plz give full details

Answer 1

A very good question!
There are 4 basic forces in physics (In order, strong to weak): the strong force, weak force, electromagnetism, and gravity. Yes, gravity is the weakest!
It is the "Strong force" that binds protons and neutrons.
Protons do repel one another until they get very close - touching, really. Then they stick extremely strongly!
The repelling force is electromagnetic, and is orders of magnitude (powers of 10) less than the strong force.
Every element except hydrogen was made in the extreme gravity inside a star, the only place where pressure is great enough to force protons that close.
So we are all stars, literally!
The "Unified Field Theory" is a quest by physicists to relate all of these forces with one equation, or a set of equations. I believe 3 is the best yet.

Answer 2

There are other forces at work in the nucleus, called the strong and weak interactions. These, basically, keep the protons and neutrons together in the nucleus.

The neutrons do not actually carry these forces. Instead, it is shared by the protons and neutrons. The reason the nucleus stays together is that these interactions are attractive, and are stronger than the repulsive forces created by the positive charges of the protons.

If there are neutrons in the nucleus, the total attractive forces give stability to the nucleus, since there are a lot of aprticles, relatively few positive charges. (That is why neutrons are found in all nuclei except that of hydrogen). If there are no nueutrons, you have a relatively high anount of charge, so a big amount of repulsive force as compared to the attractive forces. Result, Proton repel each other, unstable (radioactive) nucleus.

Answer 3

Since the protons all have like charges, they repel each other and want to fly apart; but if neutrons are thrown into the mix, the atomic nucleus can be stabilized. The stabilizing effect is called the strong nuclear force, and can only operate over very short distances (between neighboring protons or neutrons).

Answer 4

Yes protons would repel each other since all are positively charged but the Neutrons have a binding force that keeps the protons together.

Answer 5

There are particles present we just don't understand yet, but a good layman's explanation until we do is that neutrons are like glue holding it all together.