50 Examples of Molecules

A molecule is the union of two or more atoms (of the same or different chemical elements) by chemical bonds, which form a stable set. For example: the water molecule is H₂OR.

Molecules constitute the smallest division of a chemical substance without losing its physico-chemical properties or denaturing (that is, a structural, non-atomic, change of biomolecules What protein or nucleic acids, leading to the loss of their biological functions). Molecules are generally electrically neutral (except the molecular ions, which are molecules with a positive or negative charge).

The interactions between the molecules of a substance give account of its physical state: being close together, the interactions will be greater and it will be a solid; with mobility, it will be a liquid; and of being very dispersed and with a lot of mobility (although without separating completely) it will be gas.

Examples of molecules

Types of molecules

Molecules can be classified according to different criteria:

According to its atomic composition:

The kind of traditional notation of molecules is expressed in relation to the atomic content present, by the symbols of the periodic table to represent the elements involved and a subscript that expresses their numerical relationship within the molecule.

However, since molecules also have three-dimensional structural arrangements, they usually a visual model that reflects the structure and not just the amount of its elements.

According to the number of atoms that are integrated into its structure:

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