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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 › periodic-table › pdf › Periodic_Table_…
    [PDF]

    PERIODIC TABLE OF ELEMENTS - PubChem

    PERIODIC TABLE OF ELEMENTS Chemical Group Block 17 Atomic Number Cl Symbol Chlorine Name Halogen Chemical Group Block 1 H Hydrogen Nonmetal 1 1 2 He Helium Noble Gas

  3. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › compound › methamphetamine

    Methamphetamine | C10H15N | CID 10836 - PubChem

    Adults: Sudden deaths, stroke, and myocardial infarction have been reported in adults taking stimulant drugs at usual doses for ADHD. Although the role of stimulants in these adult cases …

  4. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › compound › ammonia

    Ammonia | NH3 | CID 222 - PubChem

    Ammonia | NH3 or H3N | CID 222 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety ...

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

    Density | Periodic Table of Elements - PubChem

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

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

    PERIODIC TABLE OF ELEMENTS - PubChem

    PERIODIC TABLE OF ELEMENTS Electronegativity 17 Atomic Number Cl Symbol Chlorine Name 3.16 Electronegativity (Pauling Scale) 1 H Hydrogen 2.2 1 1 2 He Helium 18

  7. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › periodic-table › atomic-radius

    Atomic Radius | Periodic Table of Elements - PubChem

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

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

    Cobalt | Co (Element) - PubChem

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

  9. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › docs › elements

    Elements - PubChem

    PubChem has summary pages specific to chemical elements, and a periodic table.

  10. nih.gov
    https://pubchem.ncbi.nlm.nih.gov › periodic-table › electron-affinity

    Electron Affinity | Periodic Table of Elements - PubChem

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