CHEMICAL BONDING
 Involves the interaction between the
of atoms
 Forming the bond results in a compound that is more
 Atoms can either
or
IONIC BONDING
 Occurs between
 Metals have
than the two atoms alone
electrons
and
 Non-Metals have
 Each atom that gains or lose electrons becomes
with their closest
 The exchange of electrons between a metal and a non-metal results in
an
PROPERTIES OF IONIC COMPOUNDS
 Hard and Brittle
o ____________________________________________________________
____________________________________________________________
 Have high melting and boiling points
o _________________________________________________________________________________
_________________________________________________________________________________
 Conducts electricity as a
 Can be
in water
o When ionic compounds dissolve in water, the ions
 Conducts electricity when dissolved in water
o When an ionic compound is dissolved in water, the
solution becomes an
o An electrolyte is a solution that can
FORMATION OF AN IONIC COMPOUND
DRAWING LEWIS STRUCTURES FOR IONIC COMPOUNDS
 Example Problem: Using Lewis Structures, show how an ionic bond is formed between the following atoms.
(A) lithium and sulfur
(B) magnesium and oxygen
(C) calcium and nitrogen
STRUCTURE OF AN IONIC COMPOUND
 Ions in an ionic compound arrange themselves in a
 Sodium and chloride ions form a rigid shape because of the
their ions. Different sized ions can result in different shaped
crystals

are the smallest repeating units in an ionic crystal
 Therefore ionic compounds are formed from a large number of positive and
negative ions, not just two single ones.
of