The Chemical Bond: Covalent vs. Ionic and Polar vs. Nonpolar

The video tutorial explains chemical bonds, focusing on ionic and covalent bonds. It describes how electronegativity differences between atoms determine bond types. Ionic bonds involve electron transfer, forming charged ions, while covalent bonds involve electron sharing. Covalent bonds can be polar or nonpolar, depending on electronegativity differences. The tutorial also covers how to predict bond types based on these differences.

What happens when the electronegativity difference between two atoms is greater than 2?

• The atoms form a polar covalent bond.

• The atoms form an ionic bond.

• The atoms do not bond at all.

• The atoms form a nonpolar covalent bond.

In a covalent bond, what occurs when the electronegativity difference is less than 1.7?

• The atoms do not interact.

• Electrons are transferred from one atom to another.

• Electrons are shared between the atoms.

• The atoms form a metallic bond.

How is a polar covalent bond different from a nonpolar covalent bond?

• Polar covalent bonds involve equal sharing of electrons.

• Nonpolar covalent bonds involve unequal sharing of electrons.

• Polar covalent bonds involve unequal sharing of electrons.

• Nonpolar covalent bonds involve electron transfer.

What is the electronegativity difference range for a nonpolar covalent bond?

• Exactly 1.7

• Greater than 2

• Between 0.5 and 1.7

• Less than 0.5

Which type of bond is formed when one atom completely takes an electron from another?

• Ionic bond

• Metallic bond

• Nonpolar covalent bond

• Polar covalent bond