Covalent Lewis Dot Structures

When drawing Lewis structures, only __________ electrons are used.

• inner shell

• core

• valence

• stable

What is the correct Lewis Dot Structure for ammonia NH3

• 
• 
• 
• 

Tags

NGSS.HS-PS1-1

Which of the following is the correct Lewis structure for water?

• A

• B

• C

Tags

NGSS.HS-PS1-3

Which is the correct molecular structure for carbon dioxide?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-2

What is the correct formula for this molecule?

• Si₄F

• SiF₄

• SiF

• Si₄F₄

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

 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

Covalent compounds

• contain a sea of electrons

• share electrons

• transfer electrons

• conduct electricity

Tags

NGSS.HS-PS1-1

Is this compound ionic or covalent?

• ionic

• covalent

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

By replacing the element symbol, this could be a diagram of which element?

• Li

• Al

• C

• Be

Tags

NGSS.HS-PS1-1

Which of the following is the correct Lewis Dot Structure for water (H2O)?

• A) H-O-H with two lone pairs on oxygen

• B) H=O=H with no lone pairs

• C) H-O-H with one lone pair on oxygen

• D) H-O-H with three lone pairs on oxygen