Ch 7 and Ch 8 Review

Nonmetals tend to

• gain electrons

• lose electrons

Metals tend to

• gain electrons

• lose electrons

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

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

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

• CrO
• Cr₃O₂
• Cr₂O₃
• CrO₃

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

• KS
• K₈S
• K₆S₃
• K₂S

When an ionic compound is formed, its charge is 

• negative
• neutral (no charge)
• positive

Elements combine to form __________.

• compounds
• atoms
• positive ions
• negative ions