Molecules

Content

• Examples of molecules
• Types of molecules
• Can serve you

Is called molecule to the union of two or more atoms through chemical bonds (of the same or different elements), forming a stable set. For example: the water molecule is H₂0.

Molecules constitute the smallest division of a chemical substance without losing their physico-chemical properties or denaturing, and they are generally electrically neutral (except for ions, which are molecules of positive or negative charge).

The relationship established between the molecules of a substance shows its physical state: being very close together, it will be a solid; with mobility, it will be a liquid; and to be widely dispersed without separating at all, it will be a gas.

• See also: Examples of Atoms

Examples of molecules

Types of molecules

Molecules can be classified according to their atomic composition, namely:

Discreet. Made up of a defined and specific number of atoms, either of different elements or of the same nature. In turn, classifiable according to the number of different atoms that are integrated into its structure, in:

• Monoatomic (1 same type of atom),
• Diatomics (two types),
• Trichotomous (three types),
• Tetralogical (four types) and so on.

Macromolecules or polymers. Macromolecules are large molecular chains made up of simpler pieces joined together to form more complex constructions.

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

However, since molecules are three-dimensional objects, a visual model that reflects the structure and not just the quantity of its elements is often used for their complete understanding.

Can serve you

• Macromolecules
• Chemical compounds
• Chemical substances