Electron Dot Diagram

What are valence electrons?

• The total number of electrons in an atom

• The number of electrons in the outermost shell

• The number of electrons in the second shell

• The number of protons in the outermost shell

This could be the dot diagram of

• Mg

• Cl

• C

• O

Tags

NGSS.MS-PS1-1

This is a correct dot diagram for nitrogen (N)

• true

• false

Tags

NGSS.MS-PS1-1

This is a correct dot diagram for neon (Ne)

• true

• false

Tags

NGSS.MS-PS1-1

Which of these is incorrect?

• 
• 

Tags

NGSS.MS-PS1-1

This could be the dot diagram of

• P
• Ar
• Na
• B

Tags

NGSS.MS-PS1-1

Which of these is correct?

• 
• 
• 

This could be the dot diagram of 

• Ne
• Si
• Al
• Be

Tags

NGSS.MS-PS1-1