Lewis Covalent

 A lone pair is defined as

• A pair of bonding electrons

• One non-bonding electron

• A pair of non-bonding electrons

• A pair of electrons on the central atom

What molecule could this be? 

• H₂O

• CCl₄

• PCl₅

• NaCl

Tags

NGSS.MS-PS1-1

Who could this molecule be?

• CH₄

• CO₂

• PCl₅

• BF₃

Tags

NGSS.MS-PS1-1

Who could this be? 

• CO₂

• NH₃

• H₂S

• CH₄

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Who could this be?

• H₂O

• NH₃

• CO₂

• CH₄

Tags

NGSS.MS-PS1-1

Which molecule would have this molecular geometry?

• BF₃

• CH₄

• PCl₅

• CO₂

Why is this Lewis Structure incorrect? Select all that apply.

• H atoms can only form single bonds before their octet is fulfilled.

• There must be a triple bond between C and N to fulfill the octet of all atoms.

• Not enough valence are pictured in the diagram.

• Hydrogen needs more electrons.

• Carbon is missing a lone pair in order to satisfy it's octet.

Tags

NGSS.HS-PS1-2

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

With only 2 elements there is no real central atom.

• A

• B

• C

• D

What is the correct structure for BF₃?

• Option A.

• Option B. 

• Option C.

• Option D.

What is the correct Lewis Dot Structure for ammonia NH3

• 
• 
• 
• 

Tags

NGSS.HS-PS1-1