Valence Electrons and Lewis Dot Structure

Electron dot notation is . . . .

• A representation of an element in which only valence electrons of an atom are shown

• A representation of how compounds are formed.

How many electrons should Helium have around its Lewis dot model?

• 1

• 2

• 7

• 8

Tags

NGSS.HS-PS1-1

Which of the elements in the picture has correct electron dot notation?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many total valence electrons are participating in bonding in the molecule above?

• 8

• 4

• 2

• 3

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When drawing Lewis structures, only __________ electrons are used.

• inner shell

• core

• valence

• stable

According to the octet rule most elements need _______ valence electrons.

• 2

• 8

• 6

• 18

Draw the lewis dot structure for F2. Which of the following is the correct Lewis dot structure for the molecule F₂?

• A

• B

• C

• D

Tags

NGSS.HS-PS1-1

How many electrons are shared in each bonding line?

• 1

• 2

• 3

• 4

How many valence electrons does phosphorus have?

• 15

• 4

• 5

• 31

Tags

NGSS.HS-PS1-1

Which of these is the correct Lewis structure for NH₃?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2