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  1. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › periodic-table

    Periodic Table of Elements - PubChem

    Interactive periodic table with up-to-date element property data collected from authoritative sources. Look up chemical element names, symbols, atomic masses and other properties, …

  2. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › element › Scandium

    Scandium | Sc (Element) - PubChem

    Periodic Table Scandium Scandium is a chemical element with symbol Sc and atomic number 21. Classified as a transition metal, Scandium is a solid at 25°C (room temperature).

  3. nih.gov
    https://pubchem.ncbi.nlm.nih.gov

    PubChem

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

  4. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › element › Kr

    Krypton | Kr (Element) - PubChem

    Chemical element, Krypton, information from authoritative sources. Look up properties, history, uses, and more.

  5. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › element › Oxygen

    Oxygen | O (Element) - PubChem

    8.1 Isotopes in Earth / Planetary Science Molecules, atoms, and ions of the stable isotopes of oxygen possess slightly different physical and chemical properties, and they commonly will be …

  6. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › element › Iron

    Iron | Fe (Element) - PubChem

    Chemical element, Iron, information from authoritative sources. Look up properties, history, uses, and more.

  7. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › element

    Hydrogen | H (Element) - PubChem

    Chemical element, Hydrogen, information from authoritative sources. Look up properties, history, uses, and more.

  8. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › element › Aluminum

    Aluminum | Al (Element) - PubChem

    Chemical element, Aluminum, information from authoritative sources. Look up properties, history, uses, and more.

  9. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › element › Mercury

    Mercury | Hg (Element) - PubChem

    Chemical element, Mercury, information from authoritative sources. Look up properties, history, uses, and more.

  10. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › element › Polonium

    Polonium | Po (Element) - PubChem

    Chemical element, Polonium, information from authoritative sources. Look up properties, history, uses, and more.

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