What is the difference between a molecule and an atom What is the difference between a molecule and

The similarities between molecules and atoms are: Molecules and atoms are both basic particles that make up matter. Some substances are made up of molecules.

For example, oxygen is made up of oxygen molecules; Carbon dioxide is made up of carbon dioxide molecules. Some substances are made up of atoms. For example, diamond is made up of carbon atoms.

Both the molecules and atoms are small in size. Both the molecule and the atomic mass are small but there is still mass like a water molecule has a mass of kg and an oxygen atom has a mass of kg. Molecules and atoms are in constant motion.

There is a certain interval between molecules and atoms. The tri-state changes of matter under different conditions are mainly due to the change in the size of the intermolecular or interatomic spacing. Both molecules and atoms are divisible and inseparable.

There are interactions between molecules and atoms. For example, oxygen and hydrogen are gases at room temperature, which can condense into liquids when pressurized and cooled, and can further solidify into solids. This shows that there is an interaction between molecules, and the magnitude of the action is related to the distance and mass between molecules, and in addition, every two oxygen atoms can be combined into one oxygen molecule, and each oxygen molecule cannot be separated into two oxygen atoms under normal circumstances.

This shows that there are interactions between atoms as well. The differences are: In a chemical reaction, a molecule is broken down into atoms, but the atoms can no longer be divided.

Molecules can exist independently, but atoms generally cannot exist independently. Point of contact: Molecules are made up of atoms.

An atom is a particle that makes up a molecule, and an atom is also a kind of particle that directly makes up matter. Satisfied.

Molecules are made up of atoms Atoms are made up of protons, neutrons, and electrons Molecules are the smallest particles that maintain the chemical properties of matter Atoms are the smallest particles that undergo chemical changes.

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. So do you know the difference?

Essential differences

In chemical change, molecules are divisible and atoms are indivisible. A molecule is the smallest particle that retains its chemical properties, and in a chemical change, the molecule becomes an atom, and the atom rejoins, and the atom is the smallest particle in the chemical change.

The composition structure is different

Atoms are made up of protons and neutrons, the nucleus of a positive atom is made up of positively charged protons and electrically neutral neutrons, and the antiprotons in the nucleus of a negative atom are negatively charged, thus making the nucleus of a negative atom negatively charged. Molecules, on the other hand, are made up of atoms, which are bound together into molecules in a certain order and arrangement through a certain force.

The nature of the chemical reaction involved is different

Atoms are the basic particles that are inseparable from chemical reactions, and atoms are inseparable in chemical reactions. Molecules can be redivided in chemical reactions, and various atoms in the molecules of different substances are recombined.

Historical developments are different

The formulation of atoms predates molecules. In 1789, the French scientist Lavoisier defined the term atom, and since then, the atom has been used to denote the smallest unit of chemical change. And the first to propose the exact concept of the molecule was Avogadro, who published the molecular doctrine in 1811, arguing:

An atom is the smallest particle that participates in a chemical reaction, while a molecule is the smallest particle that a single substance or compound can exist independently in the free state.