IONIC BONDING (Chemical Bonding between metal and non metal)

IONIC BONDING (Chemical Bonding between metal and non metal)

2. IONIC BONDING
When an atom of a nonmetal
takes one or more electrons
from an atom of a metal
so both atoms end up with
eight valence electrons

3. IONIC BONDING
IS THE COMPOUND
AN IONIC COMPOUND?
METAL NONMETAL
SUBSCRIPTS

4. IONIC BONDING
ION –any atom with more or
less electrons that it is
supposed to have*
*Remember that the number of electrons
is supposed to be equal to the number of
Protons if the atom has a neutral charge

5. IONIC BONDING
Metals will tend to lose
electrons and become
POSITIVE CATIONS
Normal sodium atomloses one electronto become sodium ion

6. IONIC BONDING
Nonmetals will tend to gain
electrons and become
NEGATIVE ANIONS
Normal chlorine atomgains an electron to become a chloride ion

7. Na
+1
is called a sodium ion
The +1 symbol means it
has lostone electron
IONIC BONDING

8. Mg
+2
is called a magnesium ion
The +2 symbol means it
has losttwo electron
IONIC BONDING

9. S
-2
is called a sulfideion
The -2 symbol means it
has gained two electron
IONIC BONDING

10. Cl
-1
is called a chlorideion
The -1 symbol means it
has gainedone electron
IONIC BONDING

11. To find the chemical formula for
an ionic compound
IONIC BONDING
•Write the ion formula for the cation first
•Write the ion formula for the anion next
•criss-cross the charge numbers
to become subscripts

12. IONIC BONDING
becomes

13. To find the name of an ionic
compound
IONIC BONDING
•Name the positive element (metal) first
•Name the negative element (nonmetal) last
•Change the ending of the nonmetal to “-ide”

14. IONIC BONDING
aluminum oxygen
aluminumoxide

15. POLYATOMIC IONS
A GROUP OF ATOMS THAT ACT LIKE
ONE ION
NH
4
+1
AMMONIUM ION
CO
3
-2
CARBONATE ION
PO
4
-3
PHOSPHATE ION
IONIC BONDING

16. POLYATOMIC IONS ACT JUST LIKE ANY
OTHER NEGATIVE ION WHEN
BONDING
IONIC BONDING

17. IONIC BONDING
SODIUM SULFATE

18. IONIC BONDING

19. REVIEW QUESTIONS
1.What part of the atom is involved in ionic
bonding?
2.Ionic compounds are made of one
element that is a __________ and one
element that is a ____________.
3.What is an ion?

20. REVIEW QUESTIONS
4. Metals will _______ electrons and
become ions with a __________ charge.
5. Non metals will _______ electrons and
become ions with a ________ charge.
6. An ion with a +3 charge means the atom
has _________________ electrons.

21. REVIEW QUESTIONS
7. An ion with a -2 charge means that the
atoms has _______________ electrons.
8. The formula for potassium chloride would
be ______________.
9. The name of the chemical Al
2O
3would be
________________________.