Lewis Structural Formulas Covalent Bonds

It is located in the center and usually listed first in the chemical formula

• central atom

• terminal atom

• neutral atom

• positive charged atom

It is bonded to only 1 atom and located on the outside.

• central atom

• terminal atom

• neutral atom

• positive charged atom

Valence electrons that are unshared are called

• lone pairs

• bonded pairs

• covalent pairs

• electronegativity

Valence electrons that are shared and becomes a bond are called

• lone pairs

• bonded pairs

• covalent pairs

• electronegativity

Tags

NGSS.HS-PS1-1

What is the total number of valence electrons in NH₄⁺¹ ?

• 5

• 9

• 10

• 8

What is the total number of valence electrons in CO₃^2- ?

• 10

• 22

• 24

• 20

How many lone pairs does chlorine have?

• 2

• 4

• 0

• 3

Tags

NGSS.HS-PS1-1

Which LD Diagram is correct for chloromethane (CH₃Cl)

• A
• B
• C
• D

Tags

NGSS.HS-PS1-2

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

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

Tags

NGSS.HS-PS1-1

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

• A
• B
• C
• D

Tags

NGSS.HS-PS1-1