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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 - PubChem 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. Periodic Table of Elements 18 2 He Helium

  5. Atomic Mass | Periodic Table of Elements - PubChem

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

  6. 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 …

  7. Moscovium | Mc (Element) - PubChem

    This produced one atom of moscovium-287 and three atoms of moscovium-288. All four atoms quickly decayed into other elements. Moscovium's most stable isotope, moscovium-289, has a half-life of …

  8. Electron Affinity | Periodic Table of Elements - PubChem

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

  9. Boiling Point | Periodic Table of Elements - PubChem

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

  10. Beryllium | Be (Element) - PubChem

    Laser Spectroscopy of High Rydberg States of Light Alkaline-Earth Elements: Be and Mg, R. Beigang, D. Schmidt, and P. J. West, J. Phys. (Paris) Colloques 44, C7-229–C7-237 (1983) …