1. 1. Atoms can transfer one or more
___________________ to form an ionic
bond.
2. Each atom is left with a
_______________ outer shell.
3. An ionic bond forms between a
___________________ ion with a
positive charge and a
___________________ ion with a
negative charge.
valence electrons
full
metal
nonmetal

2. ReviewReview
IonsIons
Ionic BondsIonic Bonds
Properties of ionicProperties of ionic
compoundscompounds

3. Covalent BondCovalent Bond
Valence electrons can beValence electrons can be
sharedshared
Two or more atoms canTwo or more atoms can
shareshare electrons in theirelectrons in their
outer shellouter shell
This satisfies the octet ruleThis satisfies the octet rule

4. Covalent BondCovalent Bond
Attraction of two or moreAttraction of two or more
atoms for aatoms for a shared pairshared pair ofof
electronselectrons
No ions formedNo ions formed
Usually formed from 2 orUsually formed from 2 or
more nonmetalsmore nonmetals

6. Properties of CovalentProperties of Covalent
CompoundsCompounds
They are found in allThey are found in all
states of matterstates of matter
They have lowThey have low
melting pointsmelting points

7. Properties of CovalentProperties of Covalent
CompoundsCompounds
Many do not dissolve inMany do not dissolve in
water, some dowater, some do
The ones that doThe ones that do
dissolve, do not conductdissolve, do not conduct
electricityelectricity