Covalent Bonding

Which of the following pairs of atoms are most

likely to form a covalent bond?

• Two metal atoms

• Two non-metal atoms

• A metal atom and a non-metal atom

• All of the above

How many valence electrons does Argon (Ar) have?

• 6

• 7

• 8

• 5

What chemical bond is formed when atoms share

pairs of electron?

• Ionic

• Diatomic

• Covalent

• Atomic

How many electrons Krypton (Kr) has?

• 36

• 54

• 35

• 18

How many electrons should Carbon have around

its outer valence shell?

• 1

• 4

• 3

• 5

Which of the following pairs of elements is likely

to bond covalently?

• P and F

• Mg and Cl

• S and Ne

• Fe and H

What is the correct formula for this molecule?

• NH

• NH4

• NH3

• N4H

What is the electron configuration of Oxygen (O)?

• 1s²  2s²  2p⁴

• 1s²  2s²  2p⁵

• 1s²   2s²  2p¹

• 1s²  2s²  2p⁶

What is the correct formula for this molecule?

• Si2F

• SiF

• SiF4

• Si4F4

Which of the following is the correct Lewis structure

for the compound PBr3?

• Structure A

• Structure B

• Structure C

• Structure D