LT4 Valence Electrons & Lewis Dot Diagrams

What is a valence electron?

• The sum of neutrons and protons.

• The electrons in the outermost shell.

• A type of bond.

• A popular compound.

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

• 2
• 8
• 3
• 13

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NGSS.HS-PS1-1

• 7
• 8
• 9
• 10

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many dots would you put around an element symbol for a group 5A element?

• 4

• 5

• 6

• 8

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NGSS.HS-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

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NGSS.HS-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.

Tags

NGSS.HS-PS1-1

This is a correct dot diagram for nitrogen (N)

• true

• false

Tags

NGSS.HS-PS1-1