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    • Zinc, cadmium, mercury, and copernicium

      • Group 12 element - Simple English Wikipedia, the free encyclopedia Group 12 element A group 12 element is a group in the periodic table of chemical elements. It includes zinc, cadmium, mercury, and copernicium. Copernicium is not stable so its properties are not clear.
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  2. Group 12, by modern IUPAC numbering, is a group of chemical elements in the periodic table. It includes zinc (Zn), cadmium (Cd), mercury (Hg), [2] [3] [4] and copernicium (Cn). [5] Formerly this group was named IIB (pronounced as "group two B", as the "II" is a Roman numeral ) by CAS and old IUPAC system.

  3. The s- and p-block elements, which fill their outer shells, are called main-group elements; the d-block elements (coloured blue below), which fill an inner shell, are called transition elements (or transition metals, since they are all metals).

  4. Main-group elements (with some of the lighter transition metals) are the most abundant elements on Earth, in the Solar System, and in the universe. Group 12 elements are often considered to be transition metals; however, zinc (Zn), cadmium (Cd), and mercury (Hg) share some properties of both groups, and some scientists believe they should be included in the main group.

  5. 5.1: The Group 12 Elements. Although the Group 12 metals (Table 5.1.1 5.1. 1) are formally part of the d-block elements from their position in the Periodic Table, their electronic configuration in both their elemental form ( d10s2) and the vast majority of their compounds ( d10) is that of the main group elements.

  6. www.wikidoc.org › index › Group_12_elementGroup 12 element - wikidoc

    A group 12 element is one in the series of elements in group 12 (IUPAC style) in the periodic table, consisting of transition metals which are zinc (Zn), cadmium (Cd), mercury (Hg), and ununbium (Uub).