Ionic Bonds
Ionic Bonds
Ionic Bonds form between METALLIC and NONMETALLIC elements with GREAT
ELECTRONEGATIVE DIFFERENCES
Ionic Bonds are CHARGED IONS in a GAS, LIQUID, AND SOLID
Ionic Bonds in a SOLID are NOT GOOD CONDUCTORS of electricity
happens when
there is a strong
ELECTROSTATIC ATTRACTION
between
positive and negative ions and
electrons TRANSFER
between atom bonds
Ionic Bonds in a GAS and LIQUID are GOOD CONDUCTORS of electricity
Ionic Bonds happen when the ELECTRONEGATIVE DIFFERENCE GREATER than 1.67
Ionic Bonds happen when there is a TRANSFER OF ELECTRONS between METALS and
NONMETALS in combination.
Other Characteristics of Ionic Bonds
High Melting Points
Soluble in water
Form Well defined
Crystals
Conduct ELECTRICITY
in the
molten form
Ionic substances have HIGH
melting points
Solids are NOT good conductors
Naming Ionic Bonds 3 Types
Binary
Transition Metals
The suffix of the 2nd element changes to
“-ide”
For the 1st element is necessary to
include a Roman Numeral to denote its
positive charge
NOTE:
POLYATOMIC IONS are COVALENTLY
BONDED but they still possess a charge so
they are considered IONIC BONDS
Note: Roman Numerals
Example:
Examples:
Na2S = Sodium Sulfide
CaI2 = Calcium Iodide
Polyatomic Ions
PbO2 = Lead (IV) Oxide
CuCl2 = Copper (II)Chloride
Polyatomic Ion NAMES SHOULD BE
MEMORIZED
Examples:
I: Drive/ Chemistry/ Ionic Bonds/ C. Haney and J. Haugh – Visual Organizer/ M. Owens Notes/ 2011
MgSO4 = Magnesium Sulfate
AL(OH)3 = Aluminum Hydroxide