What is the relationship between molecule and atom, molecule and atom

Molecular atoms: one. Molecule.

1.A molecule is a type of particle that makes up matter.

Most substances are made up of molecules. For example, oxygen is made up of oxygen molecules; Water is made up of water molecules; Sulfuric acid is made up of sulfuric acid molecules, etc.

2.A molecule is the smallest particle that maintains the chemical properties of a substance.

1) "Keep" means that each molecule that makes up a substance has the same chemical properties as that substance. For example, the smallest particle that maintains the chemical properties of oxygen is the oxygen molecule.

2) The properties of matter have physical properties and chemical properties, and molecules can only maintain their chemical properties, and cannot be said to be properties of substances, because the physical properties of substances (such as melting point, boiling point, hardness, density, etc.) are all properties of a large number of molecular aggregates of the substance. For example, liquid oxygen formed by the aggregation of a large number of oxygen molecules is pale blue.

3) Molecules are made up of atoms. For example, 1 oxygen molecule is made up of 2 oxygen atoms.

Two. Atom.

1.An atom is also a type of particle that makes up matter.

Metals, noble gases, diamonds, and graphite are all substances that are directly composed of atoms. For example, mercury is made up of mercury atoms, and helium is made up of helium atoms.

2.Atoms are the smallest particles in chemical change. In a chemical reaction, a molecule can be divided into atoms, but the atoms can no longer be divided into smaller particles in the chemical reaction, but the atoms are recombined into new molecules, which is the essence of chemical reactions.

For example, when red mercury oxide is heated, the mercury oxide molecule is decomposed into oxygen atoms and mercury atoms, and every 2 oxygen atoms combine into 1 oxygen molecule, and many mercury atoms aggregate into metal mercury.

A molecule is the smallest particle that maintains the chemical properties of a substance.

An atom is the smallest particle in a chemical change.

The relationship between molecule and atom is: A molecule is made up of atoms.

Molecules and atoms are both particles that make up matter, very small in mass and volume, separated from each other, and constantly moving, both of which are different in type and number, and are not electrically apparent.

The molecules are always in constant motion, and there are gaps between the molecules.

Molecular structure:Molecular structure is best determined at temperatures close to absolute zero, as as the temperature increases, so does the rotation of the molecules. Molecular shapes can be determined by quantum mechanics and semi-experimental molecular simulations, and the structure of solid-state molecules can also be determined by X-ray crystallography.

Larger molecules are usually present in multiple stable conformations, with higher energy barriers between these conformations in the potential energy plane.

Molecular structure deals with the position of atoms in space and is related to the type of chemical bond of the bond, including bond length, bond angle, and dihedral angle between three adjacent bonds.

The differences between molecules and atoms are as follows:

First, the structure is different

1. The molecular infant is a whole that is bound together by the constituent atoms according to a certain bonding order and spatial arrangement, and this bonding order and spatial arrangement relationship is called molecular structure. Due to the interaction between atoms within a molecule, the physical and chemical properties of a molecule depend not only on the type and number of constituent atoms, but also on the structure of the molecule.

2. 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, and an atom consists of a nucleus and electrons moving around the nucleus. Atoms are made up of electrons, protons, and neutrons (hydrogen atoms are made up of protons and electrons).

Second, the physical properties are different

1. All the molecules that make up matter are in an irregular motion that never stops. The higher the temperature, the faster the molecular diffusion, and in solids, liquids, and gases, the gas diffusion is the fastest. Since the motion of the molecules is related to temperature, this movement is called the thermal motion of the leaky molecules.

For example, clothes are easy to dry in hot weather, and the molecular diameter is generally on the order of 10 -10m. The molecule is small but has a certain volume and mass.

2. The mass of the atom is very small, and it constantly moves irregularly. There are intervals between atoms, and the properties of the same kind of atoms are the same, and the properties of different kinds of atoms are different. Each element has one or more isotopes that have unstable nuclei that can undergo radioactive decay, in which the nuclei can emit particles or electromagnetic radiation.

Third, the chemical properties are different

1. The molecule has a certain size and mass; There is a certain interval between molecules; Molecules are in constant motion; There is a certain force between molecules; Molecules can be made up of matter, and molecules can also be divided into smaller particles: atoms in chemical changes. Molecules can be converted into each other in the 3 states with the change of temperature.

2. Electrons are distributed outside the nucleus to produce a spectrum, and the electrons determine the chemical properties of an element and have a great impact on the magnetic properties of the atom. All atoms with the same number of protons make up elements, each with at least one unstable isotope, that can undergo radioactive decay.

Summary. The relationship between molecules and atoms is that atoms and molecules are particles of different levels, but there is no absolute limit in concept For example, noble gases are made up of atoms, but noble gas atoms are the smallest particles that maintain their chemical properties, so it can be considered that noble gases are made up of monoatomic molecules Ions can be called charged atoms Ionic compounds do not have a molecular concept in crystals, but there are molecules made of ions in high-temperature vapors, such as NaCl vapor has a single NaCl molecule Polymer compound molecules are composed of thousands of atoms, but polymer compounds are usually mixtures, so individual molecules are generally not discussed What we usually call molecules refers to particles that can exist independently and maintain the chemical properties <>of substances under certain conditions composed of finite atoms

The relationship between molecules and atoms is that atoms and molecules are particles of different levels, but there is no absolute limit of the modified wheel in concept For example, noble gases are made up of atoms, but noble gas atoms are the smallest particles that maintain their chemical properties, so it can be considered that noble gases are made up of monoatomic molecules Ions can be called charged atoms ionic compounds do not have a molecular concept in crystals, but there are molecules made of ions in high-temperature vapors, such as NaCl vapor There is a single NaCl molecule Polymer compound molecules are composed of thousands of atoms, but polymer compounds are usually mixtures, so they generally do not discuss individual molecules What we usually call molecules refers to particles that can exist independently and maintain the chemical properties of matter under certain conditions composed of finite atoms

Expansion: The molecule is the smallest unit in a substance that can exist relatively stably and independently, and maintain the physical and chemical characteristics of the substance. A molecule is composed of atoms, which are bound together into molecules in a certain order and arrangement through a certain amount of force.

Extension: Atom refers to the basic particles that are inseparable from chemical reactions, and atoms are inseparable in chemical reactions. But it can be divided in the physical state (the gap was only discovered in the late 19th and early 20th centuries).

Thus, although the atom is already very small, it is still not the most basic unit of the world.