According to the octet rule most elements are surrounded by _______ valence electrons in a molecule.

• 2

• 8

• 6

• 18

Which of the following is the correct Lewis structure for CH₃Cl ? (click the image to enlarge)

• Option A
• Option B
• Option C
• Option D

In the correct Lewis structure for CH_4, how many bonding electrons are present ?

• 2

• 8

• 0

• 4

In the correct Lewis structure for water, how many lone pairs of electrons will oxygen have?

• 1
• 4
• 3
• 2

Which of the following is the correct Lewis structure for CH₂O ? (click the image to enlarge)

• A

• B

• C

• D

Which of the following elements will NOT be surrounded by an octet of electrons in a correctly drawn Lewis structure?

• carbon
• oxygen
• chlorine
• hydrogen

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is the correct Lewis structure for the molecule fluorine (F₂) ?

• A

• B

• C

• D

Which of the following is the correct Lewis structure for the compound PBr₃? 

• structure A
• structure B
• structure C
• structure D

Each line in a Lewis Structure represents __________ electron(s).

• 3

• 2

• 1

• 4

In the Lewis structure for CO₂, how many lone pairs of electrons does the carbon atom have?

• 2

• 0

• 4

• 6