Forming Ionic Compounds with Lewis Dot Structures

Refer to the image. Which diagrams correctly represent the transfer of electrons in ionic bonding?

• Diagram 3 and 4

• Diagram 1 and 2

• Diagram 1 and 4

• Diagram 2 and 3

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NGSS.HS-PS1-1

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Study the electron dot diagrams for lithium, carbon, fluorine, and neon. Choose the statement that correctly identifies the most stable of the elements.

• Lithium is the most stable element because it has to lose only one electron to achieve a stable configuration.
• Carbon is the most stable element because it can form four bonds
• Fluorine is the most stable element because it has to gain only one electron to achieve a stable configuration
• Neon is the most stable element because its highest occupied energy level is filled.

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NGSS.HS-PS1-1

How many valence electrons does chlorine (Cl) have?

• 2
• 5
• 6
• 7

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NGSS.HS-PS1-1

Which of the following diagrams correctly represents the

formation of a compound consisting of magnesium and fluorine?

• A

• B

• C

• D

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which is the correct bracket notation for calcium chloride?

• A

• B

• C

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NGSS.HS-PS1-1

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What is a anion?

• a metal with a negative (-) charge that loses electrons

• a non-metal with a negative (-) charge that gains electrons

• a metal with a positive (+) charge that gains electrons

• a non-metal with a positive (+) charge that loses electrons

What is a cation?

• a metal with a negative (-) charge that gains electrons

• a non-metal with a negative (-) charge that loses electrons

• a metal with a positive (+) charge that loses electrons

• a non-metal with a positive (+) charge that loses electrons

Atoms that gain & lose electrons are called _________

• ions
• isotopes
• radioactive
• corrosive

Which of the following diagrams correctly represents the

formation of a compound consisting of Lithium and Oxygen?

• A

• B

• C

• D

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many dots would you put around carbon, a group 14 element?

• 4

• 6

• 8

• 18

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NGSS.HS-PS1-1