AP®ChemistryCollege BoardStudy GuidesUnit 2: Molecular & Ionic Compound Structure & PropertiesIonic Crystals & MetalsSubstitutional Alloys

Substitutional Alloys (College Board AP® Chemistry)

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Substitutional Alloys

  • An substitutional alloy is composed of atoms with similar radii

    • Atoms of the substituting element can take the place of some of the original metal’s atoms in the lattice

  • Brass, composed of copper and zinc, is an example of a substitutional alloy

Diagram of a substitutional alloy

substitutional-alloy-brass

Diagram of brass showing zinc atoms occupying some of the positions in a lattice of carbon atoms

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    Fallon

    Author: Fallon

    Expertise: Chemistry Content Creator

    Fallon obtained a double major in chemistry and secondary education, and after graduating she taught Chemistry and Organic Chemistry for 7 years. Fallon’s passion for creating engaging classroom materials led her to pursue a career in content development. For over 3 years, Fallon has created videos, review materials, and practice questions for AP Chemistry, IGCSE, and other international exam boards.

    Stewart Hird

    Author: Stewart Hird

    Expertise: Chemistry Lead

    Stewart has been an enthusiastic GCSE, IGCSE, A Level and IB teacher for more than 30 years in the UK as well as overseas, and has also been an examiner for IB and A Level. As a long-standing Head of Science, Stewart brings a wealth of experience to creating Topic Questions and revision materials for Save My Exams. Stewart specialises in Chemistry, but has also taught Physics and Environmental Systems and Societies.