![]() In addition, mercury forms a series of compounds in the +1 oxidation state that contain the diatomic mercurous ion Hg 2 2 +. All three elements in group 12 have ns 2(n − 1)d 10 valence electron configurations consequently, the +2 oxidation state, corresponding to losing the two ns electrons, dominates their chemistry. Zinc is the fourth most common metal used today (after iron, aluminum, and copper). Because mercury, the only metal that is a liquid at room temperature, can dissolve many metals by forming amalgams, medieval alchemists especially valued it when trying to transmute base metals to gold and silver. Zinc is the 24 th most abundant element in the Earths crust. Zinc is of considerable commercial importance. It is found in group IIb of the periodic table. In particular, Zn and Cd are rather active metals, whereas mercury is not. zinc (Zn), chemical element, a low-melting metal of Group 12 (IIb, or zinc group) of the periodic table, that is essential to life and is one of the most widely used metals. It is involved in homeostasis, in immune responses, in oxidative stress, in apoptosis and in ageing. In contrast to trends in the preceding groups, Zn and Cd are similar to each other, but very different from the heaviest element (Hg). Zinc (Zn) is one of the most important trace elements in the body and it is essential as a catalytic, structural and regulatory ion. They also have much lower melting and boiling points than the preceding transition metals. \), the group 12 metals are significantly more electropositive than the elements of group 11, and they therefore have less noble character. The abundance of elements in Earths crust is shown in tabulated form with the estimated crustal abundance for each chemical element shown as mg/kg, or parts per million. ![]()
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