Valence Electron and electron Dot Diagram

What is a valence electron?

• The sum of neutrons and protons.

• The electrons in the outermost shell.

• A type of bond.

• A popular compound.

• 2
• 8
• 3
• 13

Tags

NGSS.MS-PS1-1

How many valence electrons should Oxygen, O have in its Lewis dot model?

• 5

• 6

• 7

• 8

How many valence electrons should Lithium, Li have in its Lewis dot model?

• 1

• 2

• 3

• 4

How many valence electrons should Magnesium, Mg have in its Lewis dot diagram?

• 1

• 2

• 3

• 4

This could be the dot diagram of

• Mg

• Cl

• C

• O

Tags

NGSS.MS-PS1-1

What is the purpose of the Lewis Dot Diagram?

• To determine the electron position.

• To show the element's valence electrons & bonding capabilities.

• To find the atomic mass of an element.

• To search for the number of electrons in an individual atom.

This is a correct dot diagram for nitrogen (N)

• true

• false

Tags

NGSS.MS-PS1-1

This is a correct dot diagram for carbon (C)

• true

• false

Tags

NGSS.MS-PS1-1

Which of these is incorrect?

• 
• 

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2