Science 9: Electronic Structure of Matter & Chemical Bonding

What is a Lewis Dot Symbol?

• It shows all of the particles in the atom.

• Contains protons and neutrons

• the number of valence electrons in an element

• Contains protons and electrons

What do the dots in a Lewis dot structure represent?

• Molecules.

• Protons.

• Valence electrons.

• Atoms.

 

According to the Octet Rule, atoms want ____ electrons in their outermost energy level or shell.

• 2

• 4

• 6

• 8

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NGSS.HS-PS1-1

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How do can atoms complete the octet rule?

• They lose or gain protons

• They lose or gain neutrons

• They lose or gain electrons in the outermost level

• They lose of gain electrons from the innermost level

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NGSS.HS-PS1-1

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X atom has the electronic configuration of 1s² 2s² 2p³. How many electrons should X atom have around its Lewis dot model?

• 2

• 4

• 5

• 7

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

 

Which Lewis electron-dot diagram is correct for an S^2- ion?

• 
• 
• 
• 

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NGSS.HS-PS1-1

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According to the Octet Rule, atoms of elements react with each other in order to attain ____ electrons in their outermost energy level or shell.

• 2

• 6

• 8

• 10

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NGSS.HS-PS1-1

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By replacing the element symbol, this could be a diagram of which element?

• Li

• C

• Al

• Be

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NGSS.HS-PS1-1

 

Identify element for X atom

• Ne

• C

• Al

• Be

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NGSS.HS-PS1-1

 

What is the VSEPR theory used to predict?

• Bond Strength

• Polarity

• Molecular Shape

• Electronegativity