(i) Write the electron dot structures for sodium, oxygen, and magnesium.
(ii) Show the formation of Na2O and MgO by the transfer of electrons.
(iii) What are ions present in these compounds?
(i) 
(ii) Formation of Na2O and MgO
(iii) In Na2O, ions present are Na+ and O2-.
In MgO, ions present are Mg2+ and O2-
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