Topics similar to or like Chemical element

Element is a pure substance consisting only of atoms that all have the same numbers of protons in their atomic nuclei. Wikipedia

  • Chemistry

    Scientific discipline involved with elements and compounds composed of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a reaction with other substances. Intermediate position between physics and biology. Wikipedia

  • Periodic table

    Tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties. The structure of the table shows periodic trends. Wikipedia

  • Atom

    Smallest unit of ordinary matter that forms a chemical element. Composed of neutral or ionized atoms. Wikipedia

  • Carbon

    Chemical element with the symbol C and atomic number 6. Nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. Wikipedia

  • Alkali metal

    The alkali metals consist of the chemical elements lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr). Together with hydrogen they constitute group 1, which lies in the s-block of the periodic table. Wikipedia

  • Xenon

    Chemical element with the symbol Xe and atomic number 54. Colorless, dense, odorless noble gas found in Earth's atmosphere in trace amounts. Wikipedia

    Sentences

    Sentences forChemical element

    • Liquid water can be split into the elements hydrogen and oxygen by passing an electric current through it—a process called electrolysis.Water-Wikipedia
    • Most of the elements were discovered and named in the West, as well as the contemporary atomic theories to explain them.Western culture-Wikipedia
    • Some references add that chemical substance cannot be separated into its constituent elements by physical separation methods, i.e., without breaking chemical bonds.Chemical substance-Wikipedia
    • They exhibit absorption lines at well defined frequencies that are correlated with the energies required to excite electrons in various elements from one level to another.Doppler effect-Wikipedia
    • In 1810, chlorine was given its current name by Humphry Davy, who insisted that chlorine was in fact an element.Humphry Davy-Wikipedia
    • Among the 84 elements which occur in significant quantities (elements 1–42, 44–60, 62–83, and 90–92), it ranks 61st in abundance.Iodine-Wikipedia

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