Question

Write the name and chemical formula of each of the nine chemical compounds that can be made from the list of ions in the below two types of ions.

$$\begin{gathered} \mathrm{Na}\mathrm{Mg}\mathrm{and}\mathrm{Al} \\ \mathrm{N}\mathrm{O}\mathrm{and}\mathrm{F} \end{gathered}$$

Answer 1

Nine chemical compounds:

1.${\mathrm{Na}}_2\mathrm{O}$ Sodium oxide

• Sodium has a valency of 1 and oxygen has 2. hence two sodium atoms are needed to combine with one oxygen atom

2.$\mathrm{MgO}$ Magnesium dioxide

• Magnesium has a valency of 2 and oxygen has 2. hence one magnesium atom is needed to combine with one oxygen atom

3.${\mathrm{Al}}_2{\mathrm{O}}_3$ Aluminium trioxide.

• Aluminum has a valency of 3 and oxygen has 2. hence two aluminum atoms are needed to combine with three oxygen atoms

4.$\mathrm{NaF}$ Sodium Fluoride

• Sodium has a valency of 1 and fluorine has a valency of 1. hence one sodium atom can combine with one fluorine atom.

5.${\mathrm{MgF}}_2$ Magnesium difluoride

• Magnesium has a valency of 2 and fluorine has a valency of one. hence one magnesium atom is needed to combine with 2 fluorine atoms

6.${\mathrm{AlF}}_3$ Aluminium trifluoride

• Aluminum has a valency of 3 and fluorine has 1. hence three fluorine atoms are needed to combine with one aluminum atom

7.${\mathrm{NaNO}}_3$ Sodium nitrate

• Here, Nitrate is an ion that contains both nitrogen and oxygen atoms, nitrogen shares 5 electrons with oxygen, and the valency of one oxygen is -2 hence, the total charge of the ion is 5 + -6 = -1
• Nitrate ion with valency one combines with one sodium atom with valency one to form sodium nitrate.

8.$\mathrm{Mg}{\left({\mathrm{NO}}_3\right)}_2$ Magnesium nitrate

• Here, Nitrate is an ion that contains both nitrogen and oxygen atoms, nitrogen shares 5 electrons with oxygen, and the valency of one oxygen is -2 hence, the total charge of the ion is 5 + -6 = -1
• Two Nitrate ions with valency one combined with one magnesium atom with valency 2 to form magnesium nitrate.

9.$\mathrm{Al}{\left({\mathrm{NO}}_3\right)}_3$ Aluminium nitrate

• Here, Nitrate is an ion that contains both nitrogen and oxygen atoms, nitrogen shares 5 electrons with oxygen, and the valency of one oxygen is -2 hence, the total charge of the ion is 5 + -6 = -1
• Three Nitrate ions with valency one combined with one aluminum atom with valency 3 to form aluminum nitrate.