Chapter 17.2, Problem 9R

To determine

To Identify: The nonmetals in the given compounds.

Explanation of Solution

Introduction:

Nonmetals are form the covalent bond as well as the ionic bond and become stable.

In the given compounds, magnesium, iron, sodium and aluminum are the metals. Here, the other respective bonded atoms are form the covalent or ionic bond with the metals.

In $\text{MgO}$ compound, the oxygen atom is non-metal because it formed the ionic bond by gaining the 2 electrons from the magnesium metal.

In $\text{NaH}$ , the hydrogen atom is a non-metal because it formed the ionic bond by gaining 1 electron from the sodium metal.

In ${\text{AlBr}}_{\text{2}}$ compound, the bromine atom is a non-metal because it formed the ionic bond by gaining the 2 electrons from the aluminum metal.

In $\text{FeS}$ , the Sulfur atom is a non-metal because it formed the ionic bond by gaining the 2 electrons from the iron metal.

Conclusion:

Therefore, the oxygen, sulfur, hydrogen and bromine are the non-metals.