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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 › rest › pug › periodictable › JSON

    PubChem

    { "Table": { "Columns": { "Column": [ "AtomicNumber", "Symbol", "Name", "AtomicMass", "CPKHexColor", "ElectronConfiguration", "Electronegativity", "AtomicRadius ...

  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 › rest › pug › periodictable › CSV

    PubChem

    "AtomicNumber","Symbol","Name","AtomicMass","CPKHexColor","ElectronConfiguration","Electronegativity","AtomicRadius","IonizationEnergy","ElectronAffinity ...

  5. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › compound › Periodic-acid-dihydrate

    Periodic acid dihydrate | H5IO6 | CID 86590690 - PubChem

    Nov 20, 2024 · Periodic acid dihydrate | H5IO6 | CID 86590690 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, …

  6. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › compound › Metaperiodic-acid

    Metaperiodic acid | HIO4 | CID 65185 - PubChem

    EPA Chemicals under the TSCA LICENSE https://www.epa.gov/privacy/privacy-act-laws-policies-and-resources Periodic acid (HIO4) https://www.epa.gov/chemicals-under-tsca EPA TSCA …

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

    Zinc | Zn (Element) - PubChem

    https://www.nist.gov/pml/database-disclaimer Zinc https://physics.nist.gov/cgi-bin/Elements/elInfo.pl?element=30 IUPAC Periodic Table of the Elements and Isotopes …

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

    Protactinium | Pa (Element) - PubChem

    Periodic Table element Summary Protactinium Protactinium is a chemical element with symbol Pa and atomic number 91. Classified as a n actinide, Protactinium is a solid at 25°C (room …

  9. 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 …

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

    Xenon | Xe (Element) - PubChem

    https://www.nist.gov/pml/database-disclaimer Xenon https://physics.nist.gov/cgi-bin/Elements/elInfo.pl?element=54 IUPAC Periodic Table of the Elements and Isotopes …