Can helium atoms fission into hydrogen atoms?

Hydrogen atoms can be nuclear fusion.

Become a helium nucleus.

Because atoms are made up of neutrons, proton electrons.

It is the number of nuclear charges, that is, the number of protons, that determines the type of element. Elements are not static, and interconversion is a nuclear reaction, as long as the number of protons in the nucleus changes, the type of element will change. And because the hydrogen nuclei are positively charged, there will be a high Coulomb barrier, and the probability of the two nuclei combining is very low.

In the sun, the environment is in a state of high temperature and pressure, and the thermal movement of the atomic nucleus is violent, and the probability of crossing the barrier is significantly increased (tunneling effect) (after passing through the barrier, the nuclear force begins to act, and it is a strong interaction, enough to firmly bind the protons), statistically speaking, the number of particles that have nuclear fusion has increased significantly, and when the energy emitted by all the reactive particles exceeds the energy required for the reaction, thermonuclear reaction.

Can be self-sustaining. After the nuclear fusion, the number of protons changes, so the type of element changes (in fact, there are many intermediate reaction steps in thermonuclear reactions, which are not listed here), and at the same time, due to the loss of mass, according to the mass-energy equation.

Energy will be released. As for whether the protons asked above are different, microscopic particles have full homogeneity, and the same kind of particles have the same intrinsic properties such as rest mass, charge number, spin, magnetic moment, etc

There will be no fission, fission currently only occurs with larger atoms, such as uranium-235, plutonium-239.

It can become a hydrogen nucleus and a deuterium nucleus after absorbing a certain amount of incident energy, or a hydrogen nucleus and a tritium nucleus after absorbing neutrons of a certain energy level.

It doesn't fission, only 2 electrons re-fission, so what?

A hydrogen atom with an atomic weight of three (tritium) and a hydrogen atom with an atomic weight of two (deuterium) are combined, and they combine into a helium atom with an atomic weight of four, and the remaining atomic weight becomes a neutron release. It became helium.

The nucleus of an atom contains a huge amount of energy, and the change of the nucleus (from one nucleus to another) is often accompanied by the release of energy. Nuclear fusion is the opposite form of nuclear reaction to nuclear fission.

Scientists are working on controlled nuclear fusion, which could be the energy of the future**.

Deuterium and tritium (both isotopes of hydrogen, deuterium is an atomic nucleus with 1 neutron and 1 proton, tritium is an atomic nucleus with 2 neutrons and 1 proton) fuse and throw 1 neutron to form the same as hydrogen bombs and the sun.

OK. The Sun is a low-mass star with a central temperature of about 20 million degrees, so the reaction occurs in the form of a proton-proton chain. This is a nuclear reaction, not a chemical change.

Protons collide with protons, and when two protons fuse, they release a positron, and a neutrino generates a deuterium nucleus (including a neutron and a proton).If this generated deuterium nucleus collides with a third proton, it is possible to produce a nucleus of another element, a helium nucleus containing one neutron and two protons, which is HE3,Although the probability of a continuous collision of these three protons is very small, the mass of the sun is very large, and the number of protons is naturally innumerable, so the mass of the produced HE is still very impressive.

If two of these HE3 nuclei collide, a true HE4 nucleus may be produced, with 2 neutrons and 2 protons. 2 protons are released at the same time.

No, the current technology can't do it, such a small molecule, fusion is easy, fission is difficult.

No, if it's a brain teaser.

At the foot of the Red Mountain, the camp was opened. Mengdong wind and sand tight,

1.Two hydrogen nuclei fuse into a deuterium nucleus, emitting a positron and a high-energy photon at the same time.

2.Two deuterium nuclei fuse into a helium triple nucleus, emitting a neutron and a high-energy photon at the same time.

3.Two helium triple nuclei fuse into one helium nucleus, emitting two protons, a high-energy photon, at the same time.

Add a little more, eight hydrogen nuclei, fused into one helium nucleus, released two protons, two neutrons, two positrons, seven high-energy photons, and the net fusion of four hydrogen nuclei into one helium nucleus.

Your question needs to be answered in two parts:

Part 1: There is a nuclear force between the baryons (the annihilation of protons and neutrons) in the nucleus, binding them together. The nuclear force is the residual force of the strong interaction force, but it is still very large, 100 orders of magnitude greater than the electromagnetic force, but the nuclear force has a characteristic, the force range is very short, that is, only when the distance between protons or neutrons is very small, the nuclear force is very large, when the force range between protons or neutrons is greater than 10-15m, that is, greater than the Fermi magnitude, the nuclear force is basically gone.

This is not the same as the electromagnetic force, which is inversely proportional to the square of the distance. It is precisely because of this short-range force characteristic of the nuclear force that the protons or neutrons inside the nucleus can only have a strong nuclear force with the adjacent protons or neutrons. When the nucleus is a heavy nucleus, a large number of protons and neutrons only have nuclear force with nearby particles, which itself causes the instability of the heavy nucleus, plus the protons or neutrons inside the nucleus are not stationary, they are still moving at high speed under the constraints of nuclear force, especially after absorbing energy, many nucleons will be in an excited state, at this time, even if there is no bombardment of foreign neutrons, decay will still occur, the so-called fission of heavy nuclei.

Light nuclei are non-fissiling.

Part 2: For light nuclei, neutron bombardment can also decay, but it is not called nuclear fission. Although there is a large nuclear force between nucleons, if bombarded by foreign fast neutrons, they can still break the nucleus.

The reason for this is that the neutrons themselves are very energetic. For example, two lead balls are welded together, and they are both welded together, and they should not be able to break them by hand. However, if you use another lead ball to smash the two lead balls that are welded together, as long as you have enough strength, you can smash them open, after all, the welding is looser than the sphere.

The nuclear force is the residual interaction force of the strong interaction, so compared to the strong interaction force inside the nucleon, the nuclear force is the residual interaction between the nucleons and nucleons, and is not as strong as the strong force between quark quarks).

It is the probability of entering the dust nucleus of the original game.

Free neutrons have a certain chance of hitting the nucleus during high-speed motion, which triggers this chain reaction (fission) The uranium metal reaches a critical mass and is hit by free neutrons.