State any five chemical properties that prove that ammonium is a metal
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Aluminium is a prominent “group 13” element, a member of the Boron family. Electronic configuration of Aluminium is 1s2 2s2 2p6 3s2 3p1.
Due to an additional electron orbit in comparison to Boron, the sum of the first three ionization enthalpies of Aluminium is low in comparison to Boron and is, therefore, able to form Al3+ ions. It is a highly electropositive element and generally furnishes +3 oxidation states, as in the case of Aluminium Oxide (Al2O3).
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