Why is the smallest particle in a chemical change not an electron? Isn t there a gain or loss in ele

There are gains and losses in electrons, but electrons are only transferred between atoms, and the electrons themselves do not undergo any change, so the smallest particle in chemical change is not an electron.

Chemical change is the process of conversion or transfer of atoms or electrons between molecules in contact with each other to form new molecules accompanied by changes in energy; The chemical change is essentially the breaking of the old bond and the formation of a new bond. The process of chemical change is often accompanied by physical change. In the process of chemical change, there are usually luminescence, exothermia, and endothermy.

According to the atomic collision theory, the chemical change between molecules is accomplished by collision, and two conditions are required to complete the collision reaction molecule: (1) sufficient energy and (2) correct orientation. Because the reaction needs to overcome a certain molecular energy barrier, it must have a higher energy to overcome the molecular energy barrier. Two colliding molecules must have the correct orientation for the old bond to break.

In a chemical reaction, the molecules explode and become small atoms (or ions), and in order to achieve stability (that is, the outermost 8 electrons), they begin to "trade" electrons with each other, that is, the gains and losses of electrons. In other words, the reaction is in which atoms gain and lose electrons to become new molecules (i.e., new substances), and the protagonists are still atoms or ions (ions are actually charged atoms). It's more popular.,I don't know if you can accept it.。。。

The transfer or gain or loss of electrons in a redox reaction is the participation of the atom that has the electrons, and the electrons themselves do not change. And in Africa.

In redox reactions, there are no electrons involved.

You're right. But there's no point in arguing about this kind of thing. Just know what's going on.

Atoms do not maintain chemical changes, in chemical changes, atoms do not change, what changes is molecules, and atoms only maintain the chemical properties of matter.

2.It is right that the electrons outside the nucleus determine the chemical properties of the elements, but they are not particles that maintain the chemical properties of the substance, and in the chemical change, the electrons outside the nucleus can be transferred to other substances, so how can it be a particle that maintains the chemical properties of the substance.

Introduction: Metal elements are made up of atoms, not molecules, and noble gas elements, such as He, Ar, Ne, etc., are also made up of atoms, and matter is made up of molecules.

Atoms are indivisible and are the smallest particles in chemical change; Molecules are redivisible and are the smallest particles that retain their chemical properties, but in the case of substances made up of single atoms, the smallest particles that retain the chemical properties of the substance are atoms.

Atoms refer to the basic particles that are inseparable from chemical reactions, and atoms are inseparable in chemical reactions. But in the physical state it can be divided. An atom is made up of a nucleus and electrons that move around the nucleus.

Atoms make up the smallest unit of matter in general, known as elements. There are 118 known elements. Hence has a nuclear structure.

Atomic structure (also known as atomic model) refers to the composition of atoms and the arrangement and arrangement of parts. Atoms are very small, in the case of the carbon (c) atom, which has a diameter of about 140pm (picometers), but is usually recorded in radius, and in the case of millimeters (mm), the diameter is, is made up of a nucleus located in the center of the atom and some tiny electrons that move around the center of the nucleus, just like the planets of the solar system orbit the sun.

And the atom is the same as any black particle in the universe. Recent studies of the nucleus suggest that protons or neutrons in the nucleus may be a spherical vibrational energy layer composed of two balanced forces, internal and external.

Using this principle, a variety of relatively stable nuclei can be constructed from different sizes of energy stack layers. The entry details the neutral atom model, the solid charged sphere model, the jujube cake model, the Saturn model, the solar system model, the Bohr model, the nuclear model, and the Chadwick model.

1. No more than 2 on the first floor and no more than 8 on the second floor;

2. No more than 8 in the outermost layer. The maximum number of electrons in each layer is 2n2 (n represents the number of electron layers), that is, no more than 2 in the first layer, no more than 8 in the second layer, and no more than 18 in the third layer;

3. The number of electrons in the outermost shell should not exceed 8 (when there is only 1 electron layer, up to 2 electrons can be accommodated).

4. The principle of lowest energy: the electron first occupies the orbital with low energy as much as possible, and then enters the orbital with high energy, so that the energy of the whole atom is in the lowest state.

5. Pauli's principle: each atomic orbital can only hold a maximum of 2 electrons, and the spin state is reversed.

6. Hunt's rule: When electrons are arranged in different orbitals of the same energy level, the electrons in the ground state atom always preferentially occupy one orbital alone, and the spin state is the same.

The smallest particle in chemical change is an atom, and a molecule is the smallest unit in a substance that can exist independently and maintain the physical and chemical properties of the substance.

1. Atoms are the smallest particles in chemical change. But in the physical state it can be divided. An atom is made up of a nucleus and electrons that move around the nucleus.

Atoms make up the smallest unit of matter in general, known as elements. There are 118 known elements. Hence has a nuclear structure.

2. Atom was the earliest abstract concept with ontological significance in philosophy, and with the progress of human understanding, atom gradually became a scientific theory from an abstract concept. The nucleus and electrons are microscopic particles that make up atoms.

1. A molecule is the smallest unit in a substance that can exist independently and maintain the physical and chemical properties of the substance. Molecules are composed of atoms, which are combined into molecules in a certain order and arrangement through a certain force;

2. The existence of molecules can be gaseous, liquid or solid;

3. The structural formula of the molecule generally only reflects the connection order of the atoms in the molecule, and the value of the bond length and bond angle that determine the shape of the molecule needs to be determined by experiments.

Microscopically: there is no change in the type and number of atoms before and after the chemical reaction, but only the way the atoms are combined with each other, and the atoms are the smallest particles of chemical changes. For example, in the case of a substance made up of molecules, it is a molecule in which atoms are recombined into a new substance.

The chemical properties of a substance can only be expressed through chemical changes in the substance, so the chemical properties of the substance can be studied by the method of making the substance react chemically and a new substance can be prepared.

The above is the knowledge points I have compiled about chemical changes, I hope it can help you.

The smallest particle in a chemical change is an atom.

Atoms are the basic particles that cannot be separated from chemical reactions. Atoms are inseparable in chemical reactions but can be divided in the physical state. An atom is made up of a nucleus and electrons that move around the nucleus.

Atoms make up the smallest unit of matter in general, known as elements. There are 118 known elements of state limbs. Hence has a nuclear structure.

Atoms are the smallest particles that cannot be redivided in a chemical reaction. A positive atom contains a dense nucleus and a number of electrons that are negatively charged around the nucleus. The nucleus of a negative atom is negatively charged, and the surrounding electrons are positively charged.

The nucleus of a positive atom is made up of positively charged protons and electrically neutral neutrons.

The antiproton in the nucleus of the negative atom becomes negatively charged, thus making the nucleus of the negative atom negatively charged. When the number of protons is the same as the number of electrons, the atom is electrically neutral; Otherwise, it is a positively or negatively charged ion.

Depending on the number of protons and neutrons, the type of atom is different: the number of protons determines which element the atom belongs to, while the number of neutrons determines which isotope the atom is of that element. Atoms make up molecules, and the same kind of charges repel each other in the molecules that make up the substance, and different kinds of charges attract each other.

Atoms are the smallest particles that make up matter. No, atoms can be divided into nuclei and extranuclear electrons, which in turn are composed of protons and neutrons, and the number of protons is the basis for distinguishing various different elements.

In a chemical reaction, a molecule can be divided into atoms, but atoms can no longer be divided. Thus atoms are the smallest particles in chemical change. In fact, atoms can also be divided into electrons and cations during chemical changes, and the so-called "indivisible" of atoms means that no new atoms will be created during chemical changes.

And because ions are a special state of atoms, we don't talk about ions, but atoms are the smallest particles in chemical changes.

Chemistry is the study of the law of energy transfer and atomic combination of various different elements, so the atom is the basic unit of chemical change. Substances made up of the same kind of molecules have the same combination of atoms. So the molecule is the smallest particle that retains the chemical properties of the substance.

Whereas, the particles below the atomic level are protons. neutrons, and smaller quarks. It's just the category of microphysics, and chemistry doesn't include this, and certainly not in chemical change, so atoms are the smallest particles in chemical change.

In a chemical reaction, a molecule can be divided into atoms, but atoms can no longer be divided. Thus atoms are the smallest particles in chemical change. In fact, atoms can also be divided into electrons and cations during chemical changes, and the so-called "indivisible" of atoms means that no new atoms will be created during chemical changes.

Originally, we thought that matter was made up of atoms, and atoms were made of quarks, but quarks are not the smallest units, and there are smaller elementary particles - God particles.