6.5 Review

Ions are formed when atoms...

• lose or gain electrons

• lose electrons

• gain electrons

• gain neutrons

Ionic bonds are between...

• Metal and Non-metal
• Non-metal and Non-metal
• Metal and Metal

The covalent bond forms between

• a metal and nonmetal

• a nonmetal and nonmetal

• a metal and metal

How do covalent bonds form?

• Donating & receiving valence e- between atoms.
• Opposite slight charges attract each other between compounds.
• Scientists are still not sure how they form.
• Sharing valence e- between atoms.

Ionic or covalent?
NaBr

• Ionic
• Covalent

Ionic or covalent?
H₂O

• Ionic
• Covalent

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?
Al³⁺  O^2-         

• AlO
• Al₂O₃
• Al₃O₆
• Al₃O₂

Which is the correct formula for sodium chloride?

• SoCl
• SdCl
• NaCl
• NaCl₂