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  1. Group 11, by modern IUPAC numbering, [1] is a group of chemical elements in the periodic table, consisting of copper (Cu), silver (Ag), gold (Au), and roentgenium (Rg), although no chemical experiments have yet been carried out to confirm that roentgenium behaves like the heavier homologue to gold.

    • Periodic Table

      The s- and p-block elements, which fill their outer shells,...

  2. 118 chemical elements have been identified and named officially by IUPAC. A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z).

    Element
    Element
    Element
    Origin Of Name [2] [3]
    1
    H
    Greek elements hydro- and -gen, ' water ...
    2
    He
    Greek hḗlios, ' sun '
    3
    Li
    Greek líthos, ' stone '
    4
    Be
    Beryl, a mineral (ultimately from the ...
  3. Gruppe-11-Element. Chemische Elemente der 11. Gruppe (Kupfergruppe) des Periodensystems. Commons: Gruppe-11-Element – Sammlung von Bildern, Videos und Audiodateien.

  4. en.wikipedia.org › wiki › GoldGold - Wikipedia

    Gold is a chemical element with the symbol Au (from the Latin word aurum) and the atomic number 79. In its pure form, it is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal, a group 11 element, and one of the noble metals.

  5. Gruppe des Periodensystems – Wikipedia. Unter einer Gruppe des Periodensystems versteht man in der Chemie jede Spalte des Periodensystems. Alle Elemente einer Gruppe besitzen die gleiche Anzahl an Valenzelektronen und haben daher ähnliche chemische Eigenschaften.