Chemical Bonding CH 6 Review

An ionic bond forms when atoms ___________ electrons.

• gain
• share
• increase
• transfer

If an atom loses two electrons what charge will it have?

• + 2
•  - 2
• +1
• -1

If an atom gains one electron what charge will it have?

• -2
• -1
• +1

Covalent compounds

• Share electrons

• transfer electrons

• IDK

• conduct electricity

How many valence electrons in this structure?

• 6
• 5
• 4
• 7

What is the number of valence electrons for Oxygen?

• 8
• 6
• 2
• 1

Ionic or covalent?

Na₂O

• Ionic

• Covalent

Ionic or covalent?

NH₃

• Ionic

• Covalent

Ionic or covalent?

CaCl₂

• Ionic

• Covalent

Ionic or covalent?

H₂

• Ionic

• Covalent