Lewis Structures and Valence Electrons

What are valence electrons?

• All the electrons an atom has.

• Only the electrons in the 1st energy level.

• Only the electrons in the outer energy level.

• Total number of protons and neutrons.

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

• 2
• 8
• 6
• 18

How many valence electrons are in Phosphorus?

• 15
• 4
• 5
• 31

How many electrons does each line indicate are shared?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-2

Hydrogen needs _____ electrons in its valence shell to be stable.

• 4
• 6
• 8
• 2

When writing Lewis Structures, only __________ electrons are used.

• Inner shell
• Core 
• Valence
• Stable

This could be the dot diagram of 

• Ne
• Si
• Al
• Be

Which of these is correct?

• 
• 
• 

This is a correct dot diagram for neon (Ne)

• true

• false

What is the correct Lewis Dot Structure for ammonia NH3

• 
• 
• 
•