What are the main basics of chemistry?

4: The Basics of Chemistry

• 4.1: Atoms, Elements, and the Nucleus The parallel concepts of the element and the atom constitute the very foundations of chemical science. …
• 4.2: Avogadro’s Number and the Mole. …
• 4.3: Formulas and Their Meaning. …
• 4.4: Chemical Equations and Stoichiometry. …
• 4.5: Introduction to Chemical Nomenclature