Lewis Structural Formulas

shows the distribution of electrons in outermost shell of an atom.

• Emprical Formula

• molecular formula

• structural formula

• Lewis electron formula

What is the name of this type of diagram?

• Structural formula

• Molecular formula

• Ionic formula

• Lewis Dot Structure

Tags

NGSS.MS-PS1-1

Is this Lewis Dot structure drawn correctly?

• Yes, it's following the HONC rule and Octet Rule.

• No, because it's breaking the Octet rule.

• No, because it's breaking the HONC Rule.

• I can't tell.

Which Lewis Dot structure is drawn correctly following bonding rules?

• A

• B

• C

• D

Which picture is a correct Lewis Dot structure for NCl₃ ?

• A

• B

• C

• D

What is wrong with the Lewis Dot Structures for choices A, B, and C?

• They are not following the HONC rule.

• They are not following the octet rule.

• Nothing is wrong with them

• Every atom should have 2 valence electrons after they bond.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which structural formula would be a correct drawing of C₂H₄O₂?

• A

• B

• C

• D

What is wrong with the structural formula for B?

• Nothing

• The C's are bonding more than 4 times.

• The O's are not bonding 2 times.

• The H's are bonding more than once.

Why is picture B correct?

• It's the only choice where N has 8 dots.

• It's the only choice where the N's have a triple bond.

• It's the only choice where it is following both HONC and the Octet rule.

Tags

NGSS.HS-PS1-2

Which of these structural formulas are incorrect?

• a and c

• b and e

• b and d

• c and e