1. Ionic Compounds

2. by kind permission of Nick Kim.
                                                                        
by kind permission of Nick Kim.
Na+

3. Valence Electron Facts
the electrons involved in bonding
The # of valence electrons is the same as the group number for the atom (1A, 2A, etc)

4. Valence Electrons and Metals

5. Electron Configuration & Lewis Dot Structures of Metals
Symbol Atomic No e config Lewis dot
H s1 H
Li s2 2s1 Li
Be s2 2s2 Be
B s2 2s2 2p1 B

6. Naming Positive Ions
The name of the cation is the same as the name of the element plus the term ion
magnesium magnesium ion
lithium lithium ion

7. Negative Ions the electrons involved in bonding
The # of valence electrons is the same as the group number for the atom (5A, 6A, etc)

8. Valence Electron and Nonmetals

9. Electron Configuration & Lewis Dot Structure of Nonmetals
Symbol Atomic No e config Lewis dot
N s2 2s2 2p3 N
O s2 2s2 2p4 O
F s2 2s2 2p5 F

10. Naming Negative Ions
The name of the anion uses the root of the element and the ending -ide plus ion
oxygen ox ide ion
fluorine fluor ide ion

11. Ionic Bonding

13. Ionic Bonding – the strong vs the weak

14. Ionic Bonding – e config styleNa 3p 3p 3s 3s 2p 2p 2s 2s Na Cl 1s 1s

15. Ionic Bonding – Lewis dot style
Na + Cl  Na+ Cl-

16. Ionic Bonding – e config styleNa 3p 3p 3s 3s 2p 2p 2s 2s Mg Cl 1s 1s

17. Ionic Bonding – Lewis dot style
Mg + _Cl  Mg+2 + Cl-_

18. More Ionic Bonding and Lewis dot practice
_K + _Cl 
_Ca + _ Cl 
_Ba + _F 
_Na + _O 

19. Multivalent Ions Metal Ions with more than one charge
Metal Ions with More than One Ionic Charge - (Inner Transition and Metalloids)
Symbol
Stock Name
Classical Name
Cr+2
chromium (II) ion
chromous ion
Cr+3
chromium (III) ion
chromic ion
Mn+2
manganese (II) ion
manganous ion
Mn+3
manganese (III) ion
manganic ion
Fe+2
iron (II) ion
ferrous ion
Fe+3
iron (III) ion
ferric ion
Co+2
cobalt (II) ion
cobaltous ion
Co+3
cobalt (III) ion
cobaltic ion
Cu+1
copper (I) ion
cuprous ion
Cu+2
copper (II) ion
cupric ion
Hg+1
mercury (I) ion
mercurus ion
Hg+2
mercury (II) ion
mercuric ion
Sn+2
tin (II) ion
stannous ion
Sn+4
tin (IV) ion
stannic ion
Pb+2
lead (II) ion
plumbous ion
Pb+4
lead (IV) ion
plumbic ion

20. Practice Naming Simple Ions

21. Polyatomic Ions
Collections of tightly bound atoms that behave as a unit and carry a charge
examples
SO3-2 sulfite ion SO4-2  sulfate ion
NO2 -2  nitrite ion NO3-1  nitrate ion
ClO2-1  chlorite ion ClO3-1  chlorate ion

22. Complicated Ions Polyatomic Ions Formula Name H2PO4-1
dihydrogen phosphate ion
PO3-3
phosphite ion
PO4-3
phosphate ion
C2H3O2-1
acetate ion
HSO3-3
hydrogen sulfite ion
HSO4-4
hydrogen sulfate ion
HCO3-1
hydrogen carbonate ion
NO2-1
nitrite ion
NO3-1
nitrate ion
CN-1
cyanide ion
OH-1
hydroxide ion
MnO4-1
permanganate ion
ClO-1
hypochlorite ion
ClO2-1
chlorite ion
ClO3-1
chlorate ion
ClO4-1
perchlorate ion
HPO4-2
hydrogen phosphate ion
C2O4-2
oxalate ion
SO3-2
sulfite ion
SO4-2
sulfate ion
CO3-2
carbonate ion
CrO4-2
chromate ion
Cr2O7-2
dichromate ion
SiO3-2
silicate ion
IO2-1
iodite ion
NH4+1
ammonium ion
Complicated Ions
Polyatomic Ions

23. Practice Naming Polyatomic Ions and Acids

24. Ionic Compounds composed of cations and anions electrically neutral
total + charge = total – charge
Strong vs weak forces (electronegativity)
formula units
usua lly solid at room temperature
have high melting points
conduct electricity