Zinc is the only amphoteric 3d block element. The table 7.11.1 below is an activity series of most common metals, and the table 7.11.2 is an activity series of the halogens. Since metals replace other metals, while nonmetals replace other nonmetals, they each have a separate activity series. >All 3d block elements are amphoteric in nature The activity series is a list of elements in decreasing order of their reactivity. They have properties in common, but they also differ in significant respects. All transition metals form complex compounds.Īlkali metals have less ability to form complex xompounds due to their less charge (+1). zinc group element, any of the four chemical elements that constitute Group 12 (IIb) of the periodic tablenamely, zinc (Zn), cadmium (Cd), mercury (Hg), and copernicium (Cn). zinc group element, any of the four chemical elements that constitute Group 12 (IIb) of the periodic tablenamely, zinc (Zn), cadmium (Cd), mercury (Hg), and copernicium (Cn). If metal ion is capable of forming complexes, there is no need to be a complex compound to form coordination complexes. Represented in the periodic table as Zn, zinc is a transition metal, grouped with cadmium and mercury. Also you have to know, Not only amphoteric compounds form complexes. Why do amphoteric oxides form complex compounds?Īmphoteric compounds form complexes with water or alkalis. Therefore NaOH is not an amphoteric compound. Alkali metals' hydroxides, oxides do not show amphoteric properties. Ga 2O 3 shows amphoteric characteristics.Īmphoteric compounds, elements, metals summaryīelow figure shows the summary of amphoteric compounds such as oxides, hydroxides and amphoteric metals. Zinc is also a necessary element for proper growth and development of humans, animals, and plants it is the second most common trace metal, after iron.Ferric oxide(Fe 2O 3) reacts with both acids and basic oxides
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