an element is placed in 2nd group and 3rd period to the period of the periodic table,burns in presence of oxygen to dorm a basic oxide:-
(a) identify the element and write its electronic configuration.
(b) write balanced chemical equation when it burns in presence of air.
(c) write balanced equation when its dissolved in water.
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(a) the element is magnesium(Mg)
electronic configuration is (2,8,2)
(b) 2Mg + O₂ -----> 2MgO
(c) Mg + 2H₂O ------> Mg(OH)₂ + H₂
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