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  1. en.wikipedia.org › wiki › Period_6_elementPeriod 6 element - Wikipedia

    It is a silvery-white, heavy, third-row transition metal in group 7 of the periodic table. With an estimated average concentration of 1 part per billion (ppb), rhenium is one of the rarest elements in the Earth's crust. The free element has the third-highest melting point and highest boiling point of any element.

  2. en.wikipedia.org › wiki › List_of_chemical_elementsList of chemical elements - Wikipedia

    Like the periodic table, the list below organizes the elements by the number of protons in their atoms; it can also be organized by other properties, such as atomic weight, density, and electronegativity. For more detailed information about the origins of element names, see List of chemical element name etymologies .

    Element
    Element
    Element
    Origin Of Name [2] [3]
    1
    H
    Hydrogen
    Greek elements hydro- and -gen, ' water ...
    2
    He
    Helium
    Greek hḗlios, ' sun '
    3
    Li
    Lithium
    Greek líthos, ' stone '
    4
    Be
    Beryllium
    Beryl, a mineral (ultimately from the ...

    See full list on en.wikipedia.org

  3. en.wikipedia.org › wiki › Period_(periodic_table)Period (periodic table) - Wikipedia

    Period 6 is the first period to include the f-block, with the lanthanides (also known as the rare earth elements), and includes the heaviest stable elements. Many of these heavy metals are toxic and some are radioactive, but platinum and gold are largely inert.

  4. www.britannica.com › science › periodic-tablePeriodic table | Definition, Elements, Groups, Charges, Trends, &...

    May 2, 2024 · periodic table, in chemistry, the organized array of all the chemical elements in order of increasing atomic number —i.e., the total number of protons in the atomic nucleus.