Can ions be turned back into atoms? Can ions become atoms

Hello, ions are originally an atomic state, but they just lose or have some extra electrons. Atoms in the ionic state show positive or negative polarity, and neutralize with other atoms to produce neutral atoms. Hope mine can help you, thanks!

Ions: Positive ions and negative ions.

In the periodic table, the nuclei of various elements have different abilities to bind electrons, and the outermost electrons are easily freed from the nucleus.

Positive ions and negative ions are often present in the electrolyte, and the atoms lose electrons and become positive ions, and the atoms that gain electrons become negative ions.

That's the root of chemistry, for example:

H2O H++OH- Water molecules are weakly ionized and can generate a hydrogen ion (positive ion) and a hydroxide ion (negative ion), both of which are relatively stable when separated, but when they are close together, they will combine into water molecules, that is, two hydrogen atoms and one oxygen atom, which are electrically neutral.

Positive ions, negative ions, and free electrons are collectively referred to as carriers.

Atoms becoming ions is a chemical change mainly because atoms form ions in the change.

In a substance made up of molecules, the chemical change is based on whether the molecule itself has changed, not on whether the atoms have changed. For example, ice melts into water, which is made up of water molecules, and water is also made up of water molecules.

When an atom becomes an ion, what must change is the number of electrons, because the difference in structure between atoms and ions of the same substance is the difference in the number of electrons. That is, there is a change in chemical valence.

Introduction:

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. Hence has a nuclear structure.

If there is only one ion, it cannot be turned into an atom by chemical means, because we cannot change the nucleus of an atom, and only by reacting with other ions with it, so that this ion gains or loses a certain number of electrons, can it become an atom.

Ions are charged particles formed by an atom or group of atoms losing or gaining one or a few electrons. This process is called ionization. The energy required or emitted by the ionization process is known as ionization energy.

In a chemical reaction, the atom of a metallic element loses its outermost electron, and the non-metallic atom gains an electron, thus giving charge to the atom or cluster of atoms participating in the reaction. Charged atoms are called ions, positively charged atoms are called cations, and negatively charged atoms are called anions. Anions and cations form uncharged compounds due to electrostatic action.

Like molecules and atoms, ions are the elementary particles that make up matter. For example, sodium chloride is composed of chloride ions and sodium ions.

The mass of the atom is very small.

Irregular movement without stopping.

There are gaps between atoms.

The properties of the same kind of atoms are the same, and the properties of different kinds of atoms are different.

Summary. The reaction between ions and atoms can produce precipitates. When two ions or atoms in a solution meet, if there is enough force of attraction between them, a new compound is formed, which can be unstable and will react to form a solid precipitate.

For example, when sodium ions and chloride ions meet in water, they recombine to form sodium chloride crystals. This crystal has a strong absorption capacity, so when a large amount of sodium and chloride ions come together, a white precipitate is formed. Similarly, some metal ions interact with oxygen-containing substances and react to form solid precipitates.

The reaction between the atoms may also manifest itself by generating precipitates. For example, iron atoms react with oxygen atoms in water to form Fe(OH)3 precipitates. The formation of these precipitates is usually caused by the difficulty of dissolving certain products in solution during chemical reactions.

The reaction between ions and atoms can produce precipitates. When two ions or atoms in a solution meet, if there is enough force of attraction between them, a new compound is formed, which can be unstable and will react to form a solid precipitate. For example, when sodium ions and chloride ions meet in water, they recombine to form sodium chloride crystals.

This crystal has a strong absorption capacity, so when a large amount of sodium and chloride ions come together, a white precipitate is formed. Similarly, some metal ions and oxygen-containing substances interact with each other to form solid precipitates. The reaction between the atoms may also manifest itself by generating precipitates.

For example, iron atoms react with oxygen atoms in water to form Fe(OH)3 precipitates. The formation of these sedimentation cracks is usually caused by the difficulty of dissolving certain products in solution during the chemical reaction.

Doing your homework.

Right. Not much.

Uh-huh. Why is option C wrong in question 7?

Are you still there? There is a problem with the options.

You're right.

Silver chloride is generated.

Summary. Pro-<>

Why does the atom lose its outer electrons and become ions in chemical changes, because: the number of electrons in the outer shell of an atom is less than 8, but the outer shell must have 8 electrons to form a stable structure. Therefore, if the number of electrons in the outer shell of an atom is less than 4 (1, 2, 3, such as metals), it will lose those electrons to form cations; If the number of electrons in the outer shell is greater than 4 (non-metal), some more electrons will be obtained, forming an 8-electron stable structure, which becomes anion; Anything equal to 4 is possible.

In chemical change, why do atoms lose their outermost electrons and become ions.

The number <>of electrons in the outer shell of the atom is less than 8, but the outer shell of the atom must have 8 electrons to form a stable structure. Therefore, if the number of electrons in the outer shell of an atom is less than 4 (1, 2, 3, such as metals), it will lose those electrons to form cations; If the number of electrons in the outer shell of zui is greater than that of 4, the liquid slow cracking (non-metal) will get some more electrons to form an 8-electron stable structure and become anions; Anything equal to 4 is possible.

<>Atoms are the basic particles of chemical reactions that cannot be redivided. Atoms cannot be divided in chemical reactions, but they can be divided in physical states. The atom is made up of the nucleus and electrons moving around the nucleus.

Atoms make up small units of matter in general, called elements. There are 118 known elements.

Can you give an example.

If a solution has a chemical front change, will the atoms in it become ions, and if they become ions, are the anions and cations attracted to each other because they are electrically opposite, forming a new fibrous substance?

The molecule must not change, the molecule must change (except for the catalyst), and the ion is not coincidentally bonded, for example, some ions in the displacement reaction will definitely become filial piety, such as the reaction of hydrochloric acid and zinc, and the ions in the metathesis reaction will not change as soon as they are bright, such as hydrochloric acid and sodium hydroxide.

The atom must not change, the molecule must change (except for the decay retardant), and the ions are not necessarily, for example, some ions in the displacement reaction must change, such as the buried tremor reaction of hydrochloric acid and zinc, and the ions in the metathesis reaction must not be hungry, such as hydrochloric acid and sodium hydroxide.

Is that what I just said correct?

Dear, yes.

The ions formed after hydrogen peroxide deprotonation are called: peroxide ions.

Peroxide ion: It is an ionic cluster of two oxygen atoms combined by covalent bonds, they share a pair of electrons, so each oxygen atom is a structure of 7 electrons, which is -1 valence, and requires one electron on the left and right to reach a stable structure of 8 electrons. So there is the H2O2 structure of hydrogen peroxide.

Alkali metals produce peroxides, such as Na2O2, when burned.

Properties: Compounds react easily with water to produce oxygen.

For example, 2Na2O2+2H2O=4NaOH+O2 is a hydrogen element in the same column as alkali metals, and the rest of the peroxide compounds H2O2 are unstable and easily decomposed into water and oxygen.

2H2O2==MNO2 (catalyst) ==2H2O+O2

Answer: The hydrogen peroxide chemical formula is H2O2.

Chemically it is believed that H+ is a proton, because the H atom loses an electron and becomes H+, and there are only protons left in the nucleus, so chemically it is believed that H+ is a proton.

If hydrogen peroxide H2O2 loses an H+ (i.e., proton) and becomes Ho2-, this ion is called a hydrogen peroxide ion.

If hydrogen peroxide H2O2 loses two H+ (i.e., protons) and becomes O22-, this ion is called peroxide ion.

In chemistry, protonation is the process by which atoms, molecules, or ions acquire protons (H).

Deproton removal is the loss of H+ ions, so the ions formed after hydrogen peroxide deproton removal are called Ho2-peroxide.

ps: h2o2 = (reversible) = h++ho2-

Ho2-peroxyhydrogen group and H+ hydrogen ion.

Hydrogen peroxide is an extremely weak acid: H2O2 = (reversible) = H++Ho2- (Ka=.

The ions formed after hydrogen peroxide deprotonation are called: peroxide ions.

This is clearly wrong.

Explanation: Atoms exist in an electron shell, each electron shell has a certain number of electrons, the title just says that it loses electrons, but it does not say which electron shell loses electrons, according to the title, it can be the first shell, the second shell, or the third shell and so on. So that's wrong.

The correct one should be: after the outermost electron shell of an atom loses a certain number of electrons, it forms a cation (which can only be the outermost shell).

When aninations form compounds with each other, the whole compound is electrically neutral because the total number of positive charges carried by the cations in the ionic compound is equal to the total number of negative charges carried by the anions. 】

Ions are formed by the increase or decrease of electrons inside the atom, and in general, metallic elements will gain electrons, and non-metallic elements will lose their empty electrons.

Molecules are made up of atoms, and atoms must maintain a relatively stable structure in order to form molecules, and the number of electrons gained and lost is the same each time.

If you want to learn this section of chemistry well, you must take the periodic table.

The most important thing is to memorize their atomic numbers.

Draw a schematic diagram of the atomic structure.

This determines whether multiple atoms can form new molecules due to static electricity.

Ions have positive and negative charges, molecules do not leak, and atoms are the smallest particles in the chemical base Li dismantling change.

Different atoms can turn into ions under certain conditions.

Molecules can turn into atoms under certain conditions.