Lewis Dot Structures

What does the atomic number correspond to?

• number of neutrons

• number of electrons

• number of protons

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

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-1

Which of these Lewis structures is incorrect?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

This is a correct dot diagram for oxygen (O)

• true
• false

Tags

NGSS.HS-PS1-1

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

• 2
• 8
• 6
• 18

Tags

NGSS.HS-PS1-1

This could be the dot diagram of

• Mg

• Cl

• C

• O

Tags

NGSS.HS-PS1-1

What is the goal of the Lewis Dot Structure?

• 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.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons are in Phosphorus?

• 15
• 4
• 5
• 31

Tags

NGSS.HS-PS1-1

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.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many electrons can go in the first energy level?

• 2

• 8

• 18

• 32