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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 Group 12 elements mainly occur in sulfide ores, however, as with their Group 2 analogs, carbonate are known, but not as economically viable. The major zinc containing ore is zinc blende (also known as sphalerite), which is zinc sulfide (ZnS).

    • Terrestrial abundance (ppm)
  4. May 17, 2024 · mercury (Hg), chemical element, liquid metal of Group 12 (IIb, or zinc group) of the periodic table. Properties, uses, and occurrence. Mercury was known in Egypt and also probably in the East as early as 1500 bce.

  5. Jun 30, 2023 · Group 12: Transition Metals. Page ID. 35497. Topic hierarchy. Group 12 elements have partially filled (n − 1)d subshells, and hence are not, strictly speaking, transition metals. Nonetheless, much of their chemistry is similar to that of the elements that …

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