Question

an element forms an oxideA2O3 which is acidic in nature is it metal or nonmetal​

Answer 1

Answer:it is non metal.

Oxides of non-metals are acidic in nature while those of metals are basic. As the element A forms an acidic oxide, therefore, A must be a non-metal

Explanation:        Oxides of non-metals are acidic in nature while those of metals are basic. As the element A forms an acidic oxide, therefore, A must be a non-metal. Also it should have + 3charge, i.e., it should have 3 valence electrons. Therefore, A is boron, (electronic configuration is 2, 3) and its oxide

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