Are neutrons formed by the combination of electrons and protons?

Neutrons can be formed by the combination of protons and electrons, but not all of them.

For example, in neutron stars, the pressure is so great that electrons are compressed into the nucleus.

, homoprotons are neutralized as neutrons, making the atom become composed of only neutrons. And the entire neutron star is formed from such nuclei close together. A neutron star, so to speak, is a huge nucleus made up of neutrons.

By the way, the hydrogen element.

The isotopes of deuterium and tritium contain neutrons, so it cannot be said that there are no neutrons in the hydrogen element.

And the hydronuclear fusion reaction.

There are many types. Most of them involve the isotopes of hydrogen, deuterium and tritium, from which most of helium's neutrons come from.

For such a professional problem as the formation of neutrons, let's look at quantum mechanics data, which most people don't understand.

From a personal point of view.

According to the theory of the universe, after 10 -6 seconds, quarks and gluons combine to form a group of baryons such as protons and neutrons, and from this alone, neutrons and protons should be formed almost simultaneously, and isotopes should also be formed at the same time.

Protons are composed of two upper quarks (+2 3 each) and one lower quark (-1 3).

The neutron is made up of two lower quarks and one upper quark.

The electrons are very small and are leptons (currently thought to have no internal structure and are "elementary particles") and it should not look like so.

Of course, it is also possible that antimatter is formed by the interaction of matter.

Is it true that all matter is made up of protons, neutrons, and electrons?

No, neutrons and protons are both of the same baryon class, and both are made up of two lower quarks and one upper quark. However, neutrons and protons in the nucleus can be converted to each other by absorbing and releasing mesons.

It's made up of quarks, and the physics book in the second year of junior high school has just been learned!

No. Atoms are made of.

Nucleus and extranucleus.

Electronic composition. The nucleus is made up of protons and.

Neutron composition. A proton is made up of two upper quarks and one lower quark.

Neutrons are made up of two lower quarks and one upper quark.

Quarks: Composed of protons, neutrons, etc.

Elementary particle. of smaller particles.

Completely wrong, the atom is made up of the nucleus and the electrons outside the nucleus, and the nucleus is made up of neutrons and protons.

Yes. Under tremendous pressure, the matter in the ultra-solid state made the already crowded nuclei and electrons no longer tight, and the nuclei had to be forced to dissolve, releasing protons and neutrons from it.

Protons emitted from the nucleus of atoms combine with electrons to form neutrons under extreme pressure.

In this way, the structure of matter has undergone a fundamental change, and matter, which was originally composed of atomic nuclei and electrons, has become neutrons.

1. The relationship between protons, neutrons, and electrons

Number of protons = number of electrons outside the nucleus.

Number of neutrons = number of masses - number of protons = number of masses - number of electrons outside the nucleus.

2. Protons. Proton: A subatomic particle with a positive charge of 10 coulombs (c), about to m in diameter, and a mass of 938 million electron volts c (Mev C), that is, 10 -27 kg, about times the mass of an electron.

Protons belong to the baryon class and are made up of two upper quarks and one lower quark by gluon in a strong interaction. The number of protons in the nucleus of an atom determines its chemical properties and what kind of chemical element it belongs to.

3. Neutrons. Neutrons are one of the nucleons that make up the nucleus of an atom. Neutrons are indispensable components that make up the nucleus of an atom and make up chemical elements (Note:

Although the chemical properties of an atom are determined by the number of protons in the nucleus, if there are no neutrons, it is impossible to constitute an element other than hydrogen due to the repulsive force between positively charged protons (protons are positively charged, neutrons are not charged).

4. Electronics. An electron is a subatomic particle with a negative charge, usually labeled e-. Electrons belong to the lepton class, which is the first generation of Chinese Wikipedia without the first generation page, you can refer to the corresponding page of the English Wikipedia generation (particle physics).

A member of the leponic family that interacts with other particles with gravitational, electromagnetic, and weak nuclear forces. Leptons are one of the basic particles that make up matter, i.e. they cannot be broken down into smaller particles. Electrons with 1 2 spins are a type of fermion.

The electrons and positrons collide and annihilate each other, creating more than one pair of gamma-ray photons in the process.