an element X atomic number 20 burn in presence of oxygen to firm a basic oxide a. identify the element and write its electronic configuration b.state its group number and period number in the modern periodic table c. write the chemical balanced chemical equation for the reaction when this oxide is dissolved in water
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Explanation:
(a) The element is Calcium (Ca)
The electronic configuration is 2,8,8,2
(b) It is a member of Group II and in Period 4
(c) CaO + H2O produces Ca(OH)2 (Balanced equation)
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