Nuclear change Physical change? Chemical changes?

Nuclear fusion is not a chemical change, it is a nuclear change because the structure of the atom changes.

Chemical change: The change in the formation of a new substance before and after the change is called a chemical change.

The change in nuclear fusion fits perfectly into the definition of chemical change.

So there is a new discipline - nuclear chemistry!

It's not a chemical change, there's no chemical bond formation or breakage, it's a change in the nucleus.

Not a chemical change.

Nuclear fusion is the reaction of nuclear fusion.

Nuclear changes are changes that are different from physical and chemical changes.

Not a chemical change, of course.

Physical changes, of course, are physical changes.

Nuclear fusion and nuclear fission are physical changes and belong to nuclear reactions.

Nuclear reactions

A nuclear reaction is the process by which an incident particle (or nucleus) collides with an atomic nucleus (called a target nucleus) resulting in a change in the state of the nucleus or the formation of a new nucleus. Energy, momentum, angular momentum, mass, charge, and symmetry before and after the reaction must be conserved. Nuclear reactions are extremely important natural phenomena that have long been prevalent in the universe.

The chemical elements that exist today, except hydrogen, are synthesized through natural nuclear reactions, which are the source of the enormous energy emitted by the stars.

Facts**-Encyclopedia.

It is neither a physical nor a chemical change, it is a nuclear reaction.

Physical changes do not change the chemical properties of matter, apparently nuclear fusion.

The chemical properties of the products and reactants in nuclear fission reactions are very different.

Chemical change is in the smallest unit of atoms.

nuclear fusion and nuclear fission are both carried out under a subatomic structure.

Physical change, nuclear fusion is the synthesis of multiple nuclei into one nucleus and the release of energy. Nuclear fission is the fission of an atomic nucleus into multiple nuclei and the release of energy.

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Nuclear reactions are qualitative changes by their very nature, but they are different from chemical reactions in general. A chemical reaction is simply a rearrangement and combination of atoms or ions, while the nucleus remains unchanged. Therefore, in a chemical reaction, one atom cannot change into another.

A nuclear reaction is the transfer of interstitial points in the nucleus of an atom, resulting in the transformation of one atom into another kind of atom, and the atom undergoes a qualitative change.

The energetic effect of a nuclear reaction is much greater than that of a chemical reaction. The energy of a nuclear reaction is often measured in megaelectron volts, while the energy of a chemical reaction is generally only a few electron volts. For example:

Nuclear reactions are not achieved by ordinary chemical methods, but use many experimental techniques and theories of modern physics. First of all, it is necessary to use artificial methods to produce high-energy nuclear "shells", such as helium nuclei, hydrogen nuclei, deuterium nuclei, etc., and use these "cannonballs" to violently impact other atomic nuclei, thus causing nuclear reactions. All kinds of accelerators are designed to artificially produce charged high-energy particles and use them as nuclear "shells" to carry out nuclear reactions.

When the neutron was discovered in 1932, not only did they have a correct understanding of the structure of the atomic nucleus, but also discovered that the neutron was a new type of nuclear "cannonball".Since neutrons are not charged, there is no electrical repulsion between them and the nucleus, so they are much more effective when used to produce nuclear reactions than other charged high-energy particles.

Nuclear fusion is a physical change, not a chemical change. Nuclear fusion, also known as nuclear fusion, fusion reaction, fusion reaction, or thermonuclear reaction.

Nuclear fusion is a physical change

Nuclear fusion: It is the process of fusing several lighter nuclei into one heavier nucleus. Nuclear fusion can occur only with lighter nuclei, such as the isotopes of hydrogen, deuterium, tritium, fusing into helium. Nuclear fusion emits a huge amount of energy. This is a physical change.

In chemistry, an atom is the smallest unit of an element's chemical properties. "Chemical properties are the properties of matter in chemical reactions, so atoms are the smallest particles in chemical changes, that is, atoms are indivisible in chemical changes. The atoms in the nuclear reaction can be redivided, so the nuclear reaction is a physical reaction and not a chemical reaction.

Specifically, nuclear reactions belong to a branch of the field of physics research – nuclear physics.

Nuclear fusion, in which light nuclei (e.g. deuterium and tritium) combine to form heavier nuclei (e.g. helium) emit enormous amounts of energy. Because chemistry is a science that studies the properties, composition, structure and changes of matter at the molecular and atomic levels, and nuclear fusion occurs at the atomic nuclear level, nuclear fusion does not belong to chemical changes.

Principles of nuclear fusion

Nuclear fusion, in which light nuclei (e.g. deuterium and tritium) combine to form heavier nuclei (e.g. helium) emit enormous amounts of energy. Because chemistry is a science that studies the properties, composition, structure and changes of matter at the molecular and atomic levels, and nuclear fusion occurs at the atomic nuclear level, nuclear fusion does not belong to chemical changes.

Thermonuclear reactions, or fusion reactions of atomic nuclei, are currently a promising new source of energy. Fusion reactions caused by light nuclei involved in nuclear reactions, such as hydrogen (deuterium), deuterium, tritium, lithium, etc., which obtain the necessary kinetic energy from thermal motion. Thermonuclear reactions, the basis of the hydrogen bomb**, can produce large amounts of heat energy in an instant, but it is not yet possible to use it.

A controlled thermonuclear reaction can be achieved if it can be produced and carried out in a controlled manner according to people's intentions within a certain confined area. This is a major topic for experimental research. Controlled thermonuclear reactions are the basis of fusion reactors.

If a fusion reactor is successful, it could provide humanity with the cleanest and most inexhaustible source of energy.

Cold nuclear fusion refers to the nuclear fusion reaction carried out at a relatively low temperature (or even at room temperature), which is a conceptual 'hypothesis' for thermonuclear fusion (thermonuclear reaction inside a star) known to exist in nature, which will greatly reduce the reaction requirements, as long as the electrons outside the nucleus can be freed from the nucleus at a lower temperature, or the neutrons can be blocked or directed by a high-intensity and high-density magnetic field at a higher temperature. It is possible to use simpler equipment to produce controlled cold nuclear fusion reactions, while also making the coalescing reaction safer.

Nuclear fusion is a physical change, and nuclear fusion is the process by which several lighter nuclei coals coalesce into one heavier nucleus. Nuclear fusion is a physical change, and nuclear fusion is a few lighter ones'Only the lighter nuclei can fuse into a heavier nucleus, and nuclear fusion can be released.