Write the electron-dot structures for sodium, oxygen and magnesium.

Question 1.(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 the ions present in these compounds?
Answer: (i) 

(ii)

(iii)
Ions present in are Na₂O are Na⁺ and O^2-
Ions present in MgO are Mg²⁺ and O^2-