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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, visualize trends, or …

  2. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › docs › periodic-table-element-pages

    Periodic Table - PubChem

    May 8, 2019 · Clicking an element in the PubChem Periodic Table directs you to the corresponding Element page. This page presents a wide variety of element information, including atomic properties …

  3. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › periodic-table › pdf › Periodic_Table_of_El…
    [PDF]

    PERIODIC TABLE OF ELEMENTS - PubChem

    PERIODIC TABLE OF ELEMENTSChemical Group Block 18

  4. 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 physical properties, …

  5. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › periodic-table › pdf › Periodic_Table_of_El…
    [PDF]

    PERIODIC TABLE OF ELEMENTS - PubChem

    PERIODIC TABLE OF ELEMENTS

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

    Scandium | Sc (Element) - PubChem

    On the basis of the Periodic System, Mendeleev predicted the existence of ekaboron, which would have an atomic weight between 40 of calcium and 48 of titanium. The element was discovered by Nilson in …

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

    Argon | Ar (Element) - PubChem

    Geochronology and Thermochronology by the 40Ar/39Ar Method, p. 212, Oxford University Press, Oxford (1999). [170] United States Geological Survey. Periodic Table-Argon, U.S. Geological Survey …

  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 › ptable › electronegativity

    Electronegativity | Periodic Table of Elements - PubChem

    Explore how electronegativity changes with atomic number in the periodic table of elements via interactive plots.

  10. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › ptable › atomic-mass

    Atomic Mass | Periodic Table of Elements - PubChem

    Explore how atomic mass changes with atomic number in the periodic table of elements via interactive plots.