(a) Write the electron arrangement in (i) a magnesium atom, and (ii) an oxygen atom.(b) How many electrons are there in the valence shell of (i) a magnesium atom, and (ii) an oxygen atom.
(c) Show on a diagram the transfer of electrons between the atoms in the formation of MgO.
(d) Name the solvent in which ionic compounds are generally soluble.
(e) Why are aqueous solutions of ionic compounds able to conduct electricity?
(a) The electron arrangement in
(i) Magnesium – 2, 8, 2
(ii) Oxygen – 2, 6
(b) No. of electrons present in valence shell:
(i) Magnesium = 2
(ii) Oxygen = 6
(c) The transfer of electrons between the atoms in the formation of MgO is shown below:
(d) Water is the solvent in which ionic compounds dissolve.
(e) An aqueous solution of an ionic compound conducts electricity because they have ions in the solution that conducts electric current.
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