1. Ionic Bonding

2. A. Bond Types 3 Types of Bonds Ionic Bond Covalent Bond
3. Metallic Bond
Electron transfer from a metal to a nonmetal
Electrons are shared between two nonmetals
Electrons are delocalized among metal atoms

3. A. Bond Types NaCl H2O Chemical Formula IONIC COVALENT
Shorthand method used to show the number and type of atoms present in the smallest representative unit of a substance.
NaCl
H2O
IONIC
COVALENT

4. B. Ionic compounds Also known as a SALT NaCl KNO3 Ionic compound
A compound composed of positive and negative ions.
Also known as a SALT
Binary Compound
(Salt)
Ternary Compound
(Salt)
NaCl
KNO3

5. B. Ionic Compounds
Ionic Bonds – show transfer of electrons from metal to nonmetal
Metals tend to give up electrons
Nonmetals tend to receive electrons
The result is the formation of positive and negative ions that are bonded by electrostatic attraction

6. C. Lewis Dot Structures Na Cl Lewis Dot of the Atom
Ionic Bonds are the transferring of electrons from the metal to the nonmetal.
Stability is the name of the game. Each element becomes an ion to have a noble gas configuration in the compound
Lewis Dot of the Atom Cl Na
sodium atom
Chlorine atom

7. C. Lewis Dot Structures Cl Na Na+ Cl
Metal must become a cation by giving up an electron.
Nonmetal must receive an electron and become an anion.
The ionic bond is an electrostatic attraction between the positive and negative ion Cl Na
Sodium atom
Chlorine atom
Na+
Sodium chloride Cl -

8. C. Lewis Dot Structures Cl Mg Mg2+ Cl MgCl2
Ion – an atom or group of atoms with
a charge ( + or - ).
Cation – positive ion formed from a metal giving up 1-3 electrons
Anion – negative ion formed from a nonmetal gaining 1-3 electrons. Cl - Cl Mg
MgCl2
Mg2+

9. C. Lewis Dot Structures +1 +2 +3 -4 + -3 -2 -1 He
Oxidation Number - a “+” or “-” number given to an atom or group of atoms that represent the number of electrons that have been given (+) or received (-). +1 +2 +3 -4 + -3 -2 -1 He X X X X X X X X