Forces in the nucleus

The law of electrostatic says that like charges repel each other, so if a nucleus contains two or more positively charged protons, they should repel each other. This doesn't happen however. The protons are pulled together in a small area inside the nucleus. This is because of "the strong nuclear force" which is part of the four fundamental forces of nature. The first force is gravity but because it is dependent on the mass of the object, it's impossible to measure the pull it has on the protons. The second force is the electromagnetic force. It exists both on the inside and outside of the nucleus. It repels like charges and attract different charges.

The two other forces only operates inside the nucleus. The first one is the weak nuclear force and the second is the strong nuclear force. The weak nuclear force is stronger than gravity but weaker than the electromagnetic force. Its presence is only apparent in certain forms for radiation. The strong nuclear force is the one that is pulling the protons and neutrons together. The strong nuclear force is much stronger than the electromagnetic force, but only in small areas such as inside a nucleus. The strong nuclear force prevents the electromagnetic force from blowing up the nucleus.