Question

An element is placed in the second group and third period of the periodic table and in presence of oxygen forms a baxic oxide.

(i) Identify the element and write its electronic configuration.
(ii) Write a balanced chemical equation when it burns in the presence of air.
(iii) Draw the electron dot structure For the formation of this oxide.​

Answer 1

Answer:

(i) The element is Mg

Its electronic conf. :-

${1s}^{2} 2 {s}^{2} {2p}^{6} {3s}^{2}$

(ii) 2Mg + O2 --> 2MgO

(iii) in the pic

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