Unit 4

Nonmetals tend to

• gain electrons

• lose electrons

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Metals tend to

• gain electrons

• lose electrons

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NGSS.HS-PS1-1

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If my charge becomes 2+ what does that say about me?

• I am stealing 2 electrons
• I am losing 2 electrons
• I am in period 2
• I have an atomic # of 2

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If I gain electrons I become

• Positive because I've added to my atom
• negative because I've added electrons
• same because i'm balanced
• equal because now I have electrons

When metals bond with non-metals they form what type of bonds

• covalent
• ionic
• cooperative
• lewis

How do the following two elements bond together?
Na¹⁺  F^1-         

• NaF
• NaF₃
• Na₃F
• Na₁F₂

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How do the following two elements bond together?
Cr³⁺  O^2-         

• CrO
• Cr₃O₂
• Cr₂O₃
• CrO₃

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NGSS.HS-PS1-1

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How do the following two elements bond together?
K¹⁺  S^2- 

• KS
• K₈S
• K₆S₃
• K₂S

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

How do the following two elements bond together?
Al³⁺  O^2-         

• AlO
• Al₂O₃
• Al₃O₆
• Al₃O₂

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NGSS.HS-PS1-1

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NGSS.HS-PS1-3

AgF

• silver fluoride
• silver fluorine
• monosilver monofluoride
• silver monofluorine