Difference and connection between ions and atoms, difference between atoms and ions

1. The difference between atoms and ions:

1) The structure is different.

2) Varies in nature.

3) The size is different.

4) The symbols are different.

2. The connection between atoms and ions: cations.

The number of positive charges is equal to the number of electrons lost by its atom (the number of electrons in the outermost shell of the atom).

2. Ion refers to a stable structure in which an atom loses or gains one or several electrons due to its own or external action, so that it reaches the outermost electron number of 8 or 2 (helium atoms) or no electrons (four neutrons). This process is called ionization. The energy required or emitted by the ionization process is known as ionization energy.

3. In a chemical reaction, the metal element atom loses its outermost electron, and the non-metal atom gains electrons, so that the atoms or clusters participating in the reaction are made.

Take on the charge. 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.

Such as sodium chloride. It is composed of chloride ions and sodium ions.

4. The atom is made up of the nucleus.

and electrons outside the nucleus, the nucleus has a positive charge, and the electrons moving around the nucleus have the opposite negative charge. The number of nuclear charges of an atom.

It is equal to the number of electrons outside the nucleus, so the atom is electrically neutral. If the energy obtained by an atom from the outside exceeds the binding energy of an electron in a shell, then the electron can be freed from the atom and become a free electron.

5. Generally, atoms with the outermost number of electrons less than 4, or atoms with a large radius, are more likely to lose electrons (generally metallic elements, such as potassium K, calcium Ca, etc.) tend to achieve a relatively stable structure; Atoms with an outermost electron number of not less than 4 (generally non-metallic elements, such as boron b, carbon c, etc.) are more likely to obtain electrons and tend to achieve a relatively stable structure.

A molecule is composed of atoms, and atoms contain protons, neutrons, and electrons, and the atoms that revolve around the protons and neutrons and lose the outermost part of their electrons are called ions. Difference Between Ion and Atom: The structure is different.

The number of protons in the nucleus of an atom is equal to the number of electrons outside the nucleus, and the number of electrons in the outermost shell does not reach a stable structure (except for noble gases); The number of protons in the nucleus of an ion is greater or less than the number of electrons outside the nucleus, and the number of electrons in the outermost shell mostly reaches 8 electrons stable structure. The electrical properties are different. The total number of positive charges in the nucleus of an atom is equal to the total number of negative charges outside the nucleus, so the atom is not electrically charged, and the electrogeny is an important sign that distinguishes ions from atoms.

Since the number of positive charges in the cation nucleus is greater than the total number of negative charges outside the nucleus, it is positively charged. Anions, on the contrary, are electronegative. The nature is different. The different structures and electrical properties determine the different properties of atoms and ions.

For example, sodium metal, which is composed of sodium atoms, can react violently with water; Sodium ions, on the other hand, do not react with water, while sodium ions do not react with water and can move freely in water. Atomic connection: Since ions are made by atoms that gain (or lose) electrons, the nuclear charge number of atoms and ions is the same, and particles belonging to the same element, such as chlorine atom Cl and chloride ion Cl- are different states of existence of chlorine elements.

What is the difference and connection between ions and atoms.

Difference Between Atom and Ion:

First, the nature is different.

1. Atoms: the basic particles that are inseparable from chemical reactions, and atoms are inseparable in chemical reactions.

2. Ion: A stable structure in which an atom loses or gains one or several electrons due to its own or external action, so that it reaches a stable structure with the outermost electron number of 8 or 2 (helium atoms) or no electrons (four neutrons).

Second, the characteristics are different.

1. Atoms: The mass of atoms is very small; non-stop irregular movements; There are intervals between atoms; The properties of the same kind of atoms are the same, and the properties of different kinds of atoms are different.

2. Ions: The process of electron transfer between the atoms of a compound to generate ions is called ionization, and the energy required or released by the ionization process is called ionization energy. The greater the ionization energy, the harder it is for the atom to lose electrons.

Differences and Connections Between Molecules, Atoms, and Ions:

Differences: 1. Different in nature.

2. The characteristics are different.

Connection: A molecule is made up of atoms, atoms lose electrons and become cations, atoms gain electrons become anions, anions lose electrons and become atoms, and cations gain electrons and become atoms.

Molecule: The smallest particle that retains the chemical properties of a substance.

Atom: The smallest particle in a chemical change.

Ion: An atom or cluster of atoms that has an electric charge.

Difference and connection between atoms and ionsOne Atoms and ions are two different microscopic particles that are both distinct and closely related. (1) Distinction Conceptual MeaningThe process of different chemical changes is the process of separation and synthesis of atoms, so atoms are defined as "the smallest particles in chemical change". Atoms can take charge after gaining electrons or losing electrons, and this charged atom is called ions (charged atomic clusters are also called ions, such as hydroxide ions oh-, sulfate ions SO42-, etc.) Microstructure of different atoms:

Number of nuclear charges = number of electrons outside the nucleus. The number of electrons in the outermost shell is generally less than 8 (except for atoms with only noble gaseous elements). The structure is unstable and has a tendency to gain and lose electrons.

Ions: Number of nuclear charges≠ Number of electrons outside the nucleus, Cation: Number of nuclear charges, Number of electrons outside the nucleusAnion:

The number of nuclear charges and the number of electrons outside the nuclear are represented by the element symbol for different atoms, such as the sulfur atom is represented by the element symbol S, and the sodium atom is represented by Na. Ions need to be marked with electricity and electricity in the upper right corner of the element symbol. Such as sulfur ion S2-, sodium ion Na+.

Atoms with different chemical properties are prone to changes in electron gain or electron loss (except for atoms of noble gas elements), and their chemical properties are relatively active. The structure of the ions is more stable than the corresponding atoms, so the properties are also more stable. For example, the properties of sodium atom Na and chlorine atom Cl are very active, while the properties of sodium ion Na+ and chloride ion Cl- are very stable and are not easy to change the gain and loss of electrons.

Present in different forms: Atoms are present in certain elemental molecules (e.g., H2, Cl2) or covalent compound molecules (e.g., H2O, CO2). Ions are found in solid ionic compounds or aqueous solutions. (2) Atoms and ions connected to the same element have the same number of nuclear charges and can be converted into each other under certain conditions.

For example: a na atom loses an electron and becomes a na ionna ion gets an electron and becomes a na atom.

1. The difference between atoms and ions: (1) different structures, (2) different properties, (3) different sizes, (4) different symbols.

2. The connection between atoms and ions (1) The number of positive charges carried by a cation is equal to the number of electrons lost by its atom (usually the number of electrons in the outermost shell of the atom). (2) The number of negatively charged anions is equal to the number of electrons obtained by it (8 minus the number of outermost electrons).

What is the difference and connection between ions and atoms.

Molecules are generally made up of atoms combined.

For example, O2 (oxygen molecule) is made up of 2 O (oxygen) atoms. Of course, there will also be monoatomic molecules, such as argon, etc., which are made up of one atom into one molecule.

The atom in the narrow sense is the basic unit of the present composition of matter. In a sense, all matter is made up of atoms. For example, the pencils that are used contain lead, graphite, and other impurities, and so on, and the molecules are made up of atoms, so it can be widely thought of as the basic substances that make up matter.

Electrons (neutrons, protons) and atoms actually have microscopic internal structures. It is generally believed that an atom is made up of nuclei + electrons. The nucleus, in turn, is made up of neutrons and protons.

If you are not a university physics professional, you don't need to know more about the internal structure of the atom. If you are interested, you can refer to related books. ]

Ions In secondary school, ions are explained as groups that produce a band charge after a solvent is ionized by water in a solution. For example, in sodium hydroxide aqueous solution, NaOH will be ionized out of Na+ and OH- ion groups. [At the university level, inorganic chemistry will further study the existence of ions and ionization constants and other further related content, if you are interested, please refer to related books.] ]

Ions are a type of 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.

Atoms and molecules are electrically neutral while ions are charged. The charge is equal to the number of electrons lost or gained. For example:

The loss of 1 electron carries a positive charge of one unit, think of the sodium ions in sodium chloride. The loss of 2 electrons brings 2 positive charges, such as calcium ions in calcium chloride. Corresponding to this is the valence, sodium ions are positive monovalent and calcium ions are positive bivalent.

If you get electrons, they have a negative charge, such as fluoride ions and sulfate in sodium chloride. Since the mass of the electron is small and negligible with respect to the atom, the relative mass of the ion is the same as that of the corresponding atom.

Introduction to Atoms

Refers 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 (only discovered in the late 19th and early 20th centuries). Therefore, although the atom is already small, it is still not the most basic unit that makes up the world.

The atom itself also has an internal structure, which is made up of protons, neutrons, and electrons.