Chemical formula

Summary: Every element and compound has its own chemical formula. The chemical formula for a substance shows the relative number of atoms of each element that are in it. ‘Relative number’ means how many atoms of one type there are compared to another type. Tags: science student-book-7 chemistry Created: 2026-05-21 Last Updated: 2026-05-21

Chemical formula

Every element and compound has its own chemical formula. The chemical formula for a substance shows the relative number of atoms of each element that are in it. ‘Relative number’ means how many atoms of one type there are compared to another type.

Source

This concept is from the [Science Student Book 7](Science Student Book 7/Chemistry/Elements, Atoms, and Compounds/2.4 Chemical formulae.md), Chemistry section.