What is the nucleus made of? What does the nucleus of an atom consist of

The atomic nucleus is the main component of the atom, located in the ** of the atom, accounting for about the mass of the atom, the density of the nucleus is extremely large, the nuclear density is about 10 14g cm3. The nucleus is composed of uncharged neutrons and positively charged protons (each of which consists of three quarks: red, blue, and green). When there are an equal amount of electrons around it than the protons in it, it constitutes an atom.

The nucleus is extremely small, for example, the atomic radius of uranium is 26634, and the proportion of the radius of the nucleus of hydrogen is 60250. But in this tiny nucleus, the mass of the atom is concentrated. The nucleus also has a shell structure called the magic number:

It is the number of nucleons (the number of protons plus the number of neutrons) that can fill the nuclear shell model and improve the stability of the nucleus.

There are mesons in the nucleus that shuttle back and forth between protons and neutrons (transmitting strong nuclear force), neutrons will release -mesons become protons, and protons will release + mesons back into neutrons, and protons and neutrons in the nucleus will shuttle back and forth through mesons, and the transformation of each other is the mode of action of the strong nuclear force (see the figure below).

The number in the figure represents the smallest unit of indivisible positive and negative electromagnetic information - qubits (qubits) by the famous physicist John. Wheeler John Wheeler famously said, "It from bit."

After the development of quantum information research, this concept was sublimated to the point that everything originates from qubits) Note: Bits are bits.

Protons and neutrons. Don't you listen to class?!

The nucleus is made up of positively charged protons and uncharged neutrons.

The electrons in the outer bend of the nucleus are distributed in the electrons, and the electron transition production spectroscopy knows that the electrons determine the chemical properties of an element and have a great influence on the magnetic properties of the atom. All atoms with the same number of proton channels are composed of elements, and each element has a mostly unstable isotope that can undergo radioactive weight decay.

The nucleus is composed of protons (consisting of two upper quarks and one lower quark through strong interaction with gluons) and neutrons (consisting of two lower quarks and one upper quark, which is a composite particle).

All matter in the world is made up of molecules, or directly composed of atoms, and atoms are composed of positively charged nuclei and negatively charged extranuclear electrons, the nucleus is composed of positively charged protons and uncharged neutrons, in the atom, the number of protons = the number of electrons, so positive and negative cancel, the atom is not electrically charged, the atom is a hollow sphere, most of the mass in the atom is concentrated in the nucleus, and the electron almost does not account for the mass, usually negligible. ~~

The nucleus is made up of neutrons and protons and electrons outside the nucleus, which in turn are made up of quarks.

Atomic Physics Lecture 8: The composition of the nucleus.

Atoms are not yet the smallest particles that matter can no longer be divided. An atom is made up of a positively charged nucleus and negatively charged electrons outside the nucleus. Electrons move around the nucleus.

The nucleus is also not indifferentiable, it is made up of protons, which carry a positive charge, and neutrons, which are neutral particles that are not charged.

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 are an indispensable component of 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 of grinding stove page, you can refer to the corresponding page of 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.

In 1911, Ernest Rutherford discovered the nucleus while validating Thompson's model of plum pudding.

The atomic nucleus is the main component of the atom, located in the ** of the atom, accounting for about the mass of the atom, the density of the nucleus is extremely large, the nuclear density is about 10 14g cm3. The nucleus of an atom consists of uncharged neutrons and positively charged protons (each of the two types of baryon is composed of three quarks: red, blue, and green). When there are an equal amount of electrons around it than the protons in it, it constitutes an atom.

The nucleus is extremely small, for example, the atomic radius of uranium is 26634, and the proportion of the radius of the nucleus of hydrogen is 60250. But in this tiny nucleus, the mass of the atom is concentrated.

There are mesons in the nucleus that shuttle back and forth between protons and neutrons (transmitting strong nuclear force), neutrons will release -mesons become protons, and protons will release + mesons back into neutrons, and protons and neutrons in the nucleus will shuttle back and forth through mesons, and the transformation of each other is the mode of action of the strong nuclear force (see the figure below).

See the figure below: The middle sign in the above figure represents the smallest unit of indivisible positive and negative electromagnetic information - the qubit (qubit).

Famous physicist John. Wheeler John Wheeler famously said, "It from bit."

After the development of quantum information research, this concept was sublimated to the point that everything originates from qubits).

Note: Bits are bits.