Help pls it's very very urgent!!!?

Question

1. Protons are present in the nucleus of an atom. Being like charges they should repel each other, but they don't. Why?

2. What is the function of neutrons in an atom besides helping in determining the weight of an atom?

Answer 1

Question 2 is the answer of question 1.

In simple words: neutrons will act as glue, so that the positive protons will not repel each other.

For more info or details, search for weak and strong nuclear interaction

Answer 2

yes!  in anucleus protons repel each other but nucleus do not collapse because inspite of electrostatic repulsion ther is a strong force between nucleons(proton & neutron) mediated by Yukawa particle called pions.because which nucleus is stable.

b)to maintain stability

Answer 3

Both can be answered by one thing...neutrons.  The neutrons are kind of like the glue of the nucleus.  Neutrons help hold the protons together, preventing the nucleus from breaking apart (nuclear decay, nuclear fission).

Answer 4

Protons and neutrons are held together in a nucleus of an atom by the strong force. The strong force gets it name by being the strongest attractive force. It is 137 times more powerful than electromagnetic, which by the way cannot hold neutrons to protons because neutrons are not charged. It is 100,000 times more powerful than the weak force and 6,000 billion billion billion billion (6 followed by 39 zeroes) times more powerful than gravity which by the way has almost no effect at atomic scales.

According to the standard model of particle physics, the fundamental forces (strong, weak, electromagnetic and gravity) are predicted to occur as a result of an exchange between particles via "force carrying particles". Also, neutrons and protons are made up of tinier particles called quarks. And it is the quarks that exchange force carrying particles between each other to give rise to the strong force. The force carrying particles are called gluons.

It should be mentioned that the strong force only operates at EXTREMELY small distances. These distances are on the order of a 1000th millionth millionth of a meter (10 to the power of -15). If you think about a micrometer (one hundredth the size of a human hair), it is a billion times smaller than that.

The strong force also attracts protons to protons or neutrons to neutrons. In the case of protons to protons, the strong force loses strength after the distance mentioned above and succumbs to the electromagnetic force which pushes the protons apart. In this case the force carrier of electromagnetics is the photon (constituent of light).

So in the nucleus there is a delicate balance of the strong force pulling the atoms in to each other and the electromagnetic force which pushes protons apart. It is only when they are so close together does the attractive strong force overpower the electrostatic.

Answer 5

Some people speculate that the neutrons could theoretically hold it together because neutrons have electric charges positive and negative that are equal in quantity, but can still affect things.

However scientists say that it is because there are four fundamental forces:

Gravity

Electro-magnetic (electric charges, magnetic forces)

The Weak force

The Strong force

They are trying to unite these with a Grand Unified Theory.  As yet they hypothesize that the weak and the electromagnetic can be combined.

They don't talk much about the weak and strong forces at school, but the strong force is supposedly able to overcome the electromagnetic repulsion felt by the protons.

I do not know what backing they have for the strong force.  It would hold the protons together because it is stronger than the repulsion, but neutrons should also be considered a possibility, since it is supposedly composed of three smaller particles called 'quarks', each with electric charge.  This could mean that protons could attract to neutrons.

question 2... don't know, sorry.