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Chemistry of life

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Elements and atomsMatter, elements, and atomsIntroduction to the atomAtomic number, atomic mass, and isotopes
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OrbitalsMore on orbitals and electron configurationValence electrons and bondingGroups of the periodic tableThe periodic table, electron shells, and orbitals
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Ionic, covalent, and metallic bondsElectronegativityElectronegativity and bondingIntermolecular forcesChemical bondsChemical reactions introductionChemical reactions
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About this unit

Learn how chemistry makes life possible! From you, to your dog, to your dinner, to the global ecosystem, all living systems are made out of atoms that obey the basic rules of chemistry. Here, you can learn about the key properties of atoms, including what particles they contain, how they are organized, and how they form chemical bonds with one another.
Biology is brought to you with support from the
Amgen FoundationAmgen Foundation