Covalent Bonding Review

What kind of bonds are in molecular compounds?

• covalent bonds

• ionic bonds

• metallic bonds

• hydrogen bonds

Which of the following contains covalent bonds?

• NaBr

• Br₂

• MgCl₂

• KCl

How many valence electrons are needed for atoms to be stable?

• 2

• 4

• 6

• 8

What is the total number of electrons shared in this molecule?

• 8

• 9

• 16

• 18

Covalent bonds are formed through the ____ of valence electrons

• Transfer
• Sharing
• Donation
• Removal

Which of the following diatomic molecules will form a double bond?

• H₂
• O₂
• N₂
• F₂

A covalent bond in which electrons are shared unequally is:

• polar
• a double bond
• ionic
• polyatomic

What two types of atoms make a covalent bond?

• 2 Nonmetals
• 1 Nonmetal and 1 Metal
• 2 Metals
• 2 Noble Gases

In the correct Lewis Structure for methane (CH₄), how many unpaired electrons can be found around Carbon?

• 0
• 2
• 4
• 8

Forms when one atom donates both of the electrons to be shared with an atom or ion that needs two electrons to form a stable electron arrangement with lower potential energy.

• polar covalent bond

• coordinate covalent bond

• pi bond

• sigma bond