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  2. History of the concept

    The term "compound"—with a meaning similar to the modern—has been used at least since 1661 when
    Quicksilver … See more

    Chemical compound - Wikipedia

    • A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) containing atoms from more than one chemical element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound. A compound can be transformed into a different substance by a chemi… See more

    Definitions

    Any substance consisting of two or more different types of atoms (chemical elements) in a fixed stoichiometric proportion can be termed a chemical compound; the concept is most readily understood when considering … See more

    Types

    A molecule is an electrically neutral group of two or more atoms held together by chemical bonds. A molecule may be homonuclear, that is, it consists of atoms of one chemical element, as with two atoms in the … See more

     
  1. Chemical compound | Definition, Examples, & Types

    WEBChemical compound, any substance composed of identical molecules consisting of atoms of two or more chemical elements. All the matter in the universe is composed of the atoms of more than 100 different chemical …

     
  2. 3.1: Types of Chemical Compounds and their Formulas

    WEBJul 12, 2023 · Learn the differences between covalent and ionic bonding and how to write molecular formulas for covalent compounds. See …

    • Estimated Reading Time: 9 mins
    • What Is a Compound in Chemistry? Definition and …

      WEBOct 24, 2020 · A compound is a substance made of two or more elements chemically bonded in a fixed ratio. Learn how to write compound …

      • Estimated Reading Time: 4 mins
      • PubChem

        WEBPubChem is the world's largest collection of freely accessible chemical information. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and physical properties, biological …

      • Definition of Compounds & Elements - Examples, …

        WEBLearn the difference between elements and compounds, the two forms of pure substances. Find out how to identify, classify, and represent them with chemical symbols, formulas, and examples.

      • Definition and classification of chemical compounds

        WEBLearn about chemical compounds and their classification, properties, and reactions from Britannica's editors. Find examples of common compounds, such as methane, asparagine, arginine, RNA, and acetylcholine.

      • 6.1.4: Covalent Compounds - Formulas and Names

      • Chemical Compounds - Definition, Examples, Types

      • 5: Molecules and Compounds - Chemistry LibreTexts