Molecules
Summary: Molecules are groups of two or more atoms bonded together. Tags: concepts chemistry molecules science y7 school Created: 2026-04-22 05:00:31Z Last Updated: 2026-04-22 05:00:31Z
Content
A molecule is formed when atoms are strongly joined by chemical bonds. Molecules can be made of the same element or different elements.
In the source, water molecules are used to show that two hydrogen atoms and one oxygen atom form H2O, a compound with properties different from hydrogen gas and oxygen gas.
Molecules are represented in shorthand by Chemical Formulae.