If the nucleus is made up of positive and negative electrons why doesn't it fall apart?

Answer 1

the nucleusSimply: the nucleus is NOT made up of positive and negative electrons.

(thought you have to understand, if it were, the opposing charges of the particles would hold it together, NOT make it fall apart)

the nucleus is made up of positive particles (protons) and neutral particles (neutrons). electrons are always NEGATIVELY charged and are not in the nucleus.

while it is true that atoms are made of positive and negative charges wich attract, the protons in the nucleus should repel based on this theory. the reason why the nucleus stays together is because there is a nuclear force that supercedes the magnetic and gravitational forces. neutrons that have a neutral charge also help the nucleus stay together because they buffer between protons.

Answer 2

An atom's nucleus is held together by the so-called "strong nuclear force". In the standard model of quantum mechanics there are four forces:
1. Gravity (weak, long range)
2. Electromagnetism (strong, long range)
3. Strong force (strong, short range)
4. Weak force (weak, short range)

The strong nuclear force holds quarks and gluons together to form protons and neutrons; the left over force holds these subatomic particles together. At short range this force is more powerful than the electromagnetic force that would otherwise tear the atom apart. However EM can overpower the strong force, as in the case of nuclear fission.

Answer 3

The nucleus of an atom is made up of positively charged protons and neutral neutrons, not electrons. The strong nuclear force, which is stronger than the electromagnetic force pushing protons apart, holds the nucleus together. This force binds protons and neutrons within the nucleus, preventing it from falling apart.

Answer 4

The protons in the nucleus are attracted to the electron in the outer shell that orbits around the nucleus.