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  1. 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. PERIODIC TABLE OF ELEMENTS

  3. Ionization Energy | Periodic Table of Elements - PubChem

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

  4. Atomic Mass | Periodic Table of Elements - PubChem

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

  5. GHS Classification Summary - PubChem

    GHS, the Globally Harmonized System of Classification and Labeling of Chemicals, was developed by the United Nations as a way to bring into agreement the chemical regulations and standards of …

  6. PERIODIC TABLE OF ELEMENTSChemical Group Block 18

  7. Electronegativity | Periodic Table of Elements - PubChem

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

  8. Magnesium | Mg (Element) - PubChem

    LICENSE https://www.nist.gov/pml/database-disclaimer Magnesium https://physics.nist.gov/cgi-bin/Elements/elInfo.pl?element=12 IUPAC Periodic Table of the Elements and Isotopes (IPTEI) …

  9. Potassium | K (Element) - PubChem

    Atomic Energy Levels of the Iron-Period Elements: Potassium through Nickel, J. Sugar and C. Corliss, J. Phys. Chem. Ref. Data 14, Suppl. 2, 1–664 (1985) NIST Physical Measurement Laboratory

  10. Boiling Point | Periodic Table of Elements - PubChem

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