Exercises

Write down the properties of ionic and covalent compounds.

Explain how the valency of an element is related to its electronic configuration.

The atomic numbers of three elements are $6$, $7$and $8$ respectively. Write the electronic configuration of each element and give their valency.

The atomic numbers of three elements are $6$,$7$ and $8$ respectively. What type of compounds(ionic/covalent) will be formed by each of the elements? Explain.

Separate ionic compounds and covalent compounds in the given group. Give a reason for your choice.

${\mathrm{MgCl}}_2$,${\mathrm{CCl}}_4$, $\mathrm{CaO}$, ${\mathrm{CH}}_4$

The formation of ${\mathrm{Mg}}_2$ will be possible? Give reasons for your answer.

The formation of ${\mathrm{MgCl}}_2$will be possible? Give reasons for your answer.

The formation of${\mathrm{Cl}}_2$ will be possible? Give a reason for your answer.