Chemical Bonding

Multiple Choice

Which of the following is a reason why atoms form chemical bonds?

• To become stable by achieving a full outer shell

• To increase their atomic number

• To lose all their electrons

• To become radioactive

Multiple Choice

Which type of chemical bond involves the transfer of electrons from one atom to another?

• Ionic bond

• Covalent bond

• Metallic bond

• Hydrogen bond

Open Ended

Explain how the periodic table can help predict whether an element will lose or gain electrons during bond formation.

Multiple Select

Which of the following are properties of ionic bonds?

• High melting/boiling point

• Good conductor when dissolved or liquid

• Form crystals/crystal lattice

• Low reactivity

Open Ended

Describe the difference between a polyatomic ion and a simple ion, and give an example of each.

Fill in the Blanks

A polyatomic ion acts like a single

.

Multiple Choice

Which of the following best describes a covalent bond?

• A chemical bond between two nonmetals where atoms share a pair of valence electrons

• A bond formed by the transfer of electrons from one atom to another

• A bond between a metal and a nonmetal

• A bond that results in the formation of ions

Fill in the Blanks

In a polar covalent bond, the atom with greater attraction for electrons will have a slightly

charge.

Multiple Select

Which of the following are properties of covalent bonds?

• Weak bonds

• High melting/boiling point

• Soft and brittle

• Poor conductors of electricity

Multiple Choice

What is the main difference between covalent and ionic bonds as shown in the diagram?

• Covalent bonds involve shared electrons, while ionic bonds involve unshared electrons.

• Covalent bonds are stronger than ionic bonds.

• Ionic bonds occur only between metals.

• Covalent bonds form ions.

Multiple Choice

Which property is NOT typically associated with metallic bonds?

• Good conductor of electricity

• Flexible/malleable

• Strength depends on valence electrons contributed

• Low melting point

Fill in the Blanks

The chemical formula CaCl2 is named as calcium

.

Open Ended

In your own words, explain why atoms form chemical bonds and how this relates to their stability.

Multiple Choice

Which of the following is NOT a type of chemical bond shown in the diagram?

• Ionic

• Covalent

• Metallic

• Hydrogen