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
3. Covalent BondCovalent Bond
ïValence electrons can beValence electrons can be
sharedshared
ïTwo or more atoms canTwo or more atoms can
shareshare electrons in theirelectrons in their
outer shellouter shell
ïThis satisfies the octet ruleThis satisfies the octet rule
4. Covalent BondCovalent Bond
ïčAttraction of two or moreAttraction of two or more
atoms for aatoms for a shared pairshared pair ofof
electronselectrons
ïčNo ions formedNo ions formed
ïčUsually formed from 2 orUsually formed from 2 or
more nonmetalsmore nonmetals
5.
6. Properties of CovalentProperties of Covalent
CompoundsCompounds
ïThey are found in allThey are found in all
states of matterstates of matter
ïThey have lowThey have low
melting pointsmelting points
7. Properties of CovalentProperties of Covalent
CompoundsCompounds
ïMany do not dissolve inMany do not dissolve in
water, some dowater, some do
ïThe ones that doThe ones that do
dissolve, do not conductdissolve, do not conduct
electricityelectricity