Answer :

Answer:

c. FCl3

Explanation:

Ionic Compounds

An ionic compound is a bonded pair of metal and nonmetal components that could be elements and or polyatomics (bonded elements/atoms).

To determine if a component is metal or nonmetal is by their charge: metals have a positive charge while nonmetals have a negative one.

The most common polyatomics usually have a negative charge.

For example,

  • Sodium Nitrate, [tex]\rm Na(NO_3)[/tex]: Na has a positive charge and the polyatomic  [tex]\rm NO_3[/tex] has a negative charge;
  • Lithium Oxide, [tex]\rm LiO[/tex]: Li has a positive charge and O has a negative charge.

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Solving the Problem

It asks for which isn't an ionic compound, so we must find a compound who has either two negative or two positive charges.

Answer choice A has the components Na and F, both are a metal and nonmetal element respectively. Thus, A is ionic and can be eliminated.

Answer choice B has the components Na, which has a positive charge, and OH, which has a negative charge. Thus, B is also ionic and can be eliminated.

Answer choice C has the components F and [tex]\rm Cl_3[/tex], both are nonmetals that have negative charges. Thus, C isn't ionic and can be our final answer.

Let's keep going to make sure C is the correct answer.

Answer choices D and E have metal and nonmetal elements respectively. Thus, D and E can be eliminated.

So,

C is our final answer!

The compound (c) FCl₃ is not an ionic compound.

To determine which compound is not an ionic compound among the given options, we need to inspect the nature of the bonds between their constituent atoms:

  • NaF – This compound is ionic because it consists of sodium (Na) and fluorine (F), a metal and a nonmetal respectively.
  • NaOH – This is also an ionic compound since it contains sodium (Na), a metal, bonded to hydroxide (OH), a polyatomic ion.
  • FCl₃ – This is not an ionic compound. It consists of fluorine (F) and chlorine (Cl), both of which are nonmetals, forming a covalent bond.
  • CaO – This compound is ionic as it consists of calcium (Ca), a metal, and oxygen (O), a nonmetal.
  • MgCl₂ – This is an ionic compound composed of magnesium (Mg), a metal, and chlorine (Cl), a nonmetal.

Among the given compounds, FCl₃ is the one that is not an ionic compound.

The correct question is shown below:

Which of the following is not an ionic compound?

a. NaF

b. NaOH

c. FCl₃

d. CaO

e. MgCl₂