Ionic Bonding Quiz

When an atom gains an electron, it becomes a/an:

• Cation

• Anion

• Isotope

• Ion

Answer explanation

When an atom gains an electron, it becomes an anion. An anion is a negatively charged ion formed by gaining electrons.

Which of the following elements is most likely to form a cation?

• Chlorine

• Oxygen

• Sodium

• Nitrogen

Ionic bonding occurs between:

• Two nonmetals

• Two metals

• A metal and a nonmetal

• Two metalloids

In an ionic compound, the positive and negative ions are held together by:

• Covalent bonds

• Hydrogen bonds

• Ionic bonds

• Metallic bonds

The formula for sodium chloride is:

• NaCl2

• Na2Cl

• NaCl

• Na2Cl2

Which of the following compounds contains an ionic bond?

• CO2

• H2O

• MgO

• CH4

The charge on a chloride ion is:

• +1

• -1

• +2

• -2

Which of the following pairs of elements is most likely to form an ionic bond?

• Carbon and oxygen

• Sodium and chlorine

• Nitrogen and hydrogen

• Oxygen and hydrogen

The formula for magnesium oxide is:

• MgO2

• Mg2O

• MgO

• Mg2O2

When an ionic compound is formed, electrons are:

• Gained by both atoms

• Lost by both atoms

• Gained by the non-metal and lost by the metal

• Lost by the anion and gained by the metal