What is the change in nuclear reactions? What is the change in nuclear reaction Explanation of the c

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.

It's not a physical change, it's not a chemical change, it's a nuclear reaction.

1.Nuclear decay is the process by which the nucleus of an atom becomes another nucleus from emitting a particle.

2.There are three types of radioactive nuclear decay: decay, decay, and decay, which emit rays, rays, and volcanic rays, respectively.

3.A nuclear reaction is the process by which an incident particle (or nucleus) and an atomic nucleus (called a target nucleus) collide to cause a change in the state of the nucleus or the formation of a new nucleus.

4.Energy, momentum, angular momentum, mass, charge, and symmetry before and after the reaction must all be conserved.

5.Nuclear reactions are extremely important natural phenomena that have long been prevalent in the universe.

6.The chemical elements that exist today, except for hydrogen, are synthesized through natural nuclear reactions, and the nuclear reactions that occur on the stars are the source of the huge amount of energy emitted by the stars.

1. Nuclear reactions are neither chemical nor physical changes.

2. It is not a chemical change: in the process of nuclear reaction, a new nucleus will be produced that is different from the incident missile nucleus and the target nucleus. Therefore, nuclear reactions are the fundamental way to generate various unstable nuclei.

A chemical reaction is a recombination of atoms, and the type of element and the number of atoms remain the same before and after the reaction. The atoms in the nuclear reaction become other atoms, so it is not a chemical change.

3. It does not belong to physical change: physical change refers to the fact that although the state of matter has changed, the composition of the substance itself has not changed, the length of the chemical bond has not changed, the shape and size of the substance have changed, the molecule itself has not changed, and the combination mode of the atom has not changed. During a nuclear reaction, the nucleus of an atom changes or even forms a new nucleus, so the nuclear reaction is not a physical change.