H3O

1

• H3O

hydronium
2

• NH4

ammonium
3
Lattice Energy

• The energy needed to separate ions in an ionic
  compound

4
Formula Unit (Empirical Formula)

• the smallest whole-number ratio of ions that make
  up a compound

5

• Monoatomic Ions ions from only one atom
  
• Polyatomic Ions
• ions from more than
• one atom

6
Oxidation number

• The charge of a monatomic ion
• Transition metals multiple oxidation numbers

7
Metals with multiple charges

• Assign a Roman numeral with the name to indicate
  the charge
• Fe3 iron (III)
• Fe2 iron (II)

8
Transition metals that form more than one cation
have the number of the charge included with the
name.

• Fe2 is iron(II)
• Fe3 is iron (III)

9

• Cr2
• Cr3

Chromium (II) Chromium (III)
10

• Mn2
• Mn3

Manganese (II) Manganese (III)
11

• Co2
• Co3

Cobalt (II) Cobalt (III)
12

• Pb2
• Pb4

Lead (II) Lead (IV)
13

• Ni2
• Ni3

Nickel (II) Nickel (III)
14

• Sn2
• Sn4

Tin (II) Tin (IV)
15

• Cu
• Cu2

Copper (I) Copper (II)
16

• Hg22
• Hg2

Mercury (I) Mercury (II)
17

• Ag
• Zn2

Silver Zinc
18
Cations (monatomic)

• maintain the same name as the atom
• If the atom forms more than one type of cation,
  it is identified with the number of the charge

19
Anions (monatomic)

• replace the suffix of the atoms name with -ide.

20

• O2-
• N3-

oxide nitride
21

• P3-
• F-

phosphide fluoride
22

• S2-
• I-

sulfide iodide
23
Oxyanion

• A polyatomic anion containing oxygen
• ate have 1 more O than ite ions

24
Forming Compounds

• Criss-cross method

25
Remember

• Superscripts charge
• (Al3 has a 3 charge)
• Subscripts number of what comes just before
• (H2O has 2 hydrogens)

26
Form the Compound

• Na and NO3-
• Ca2 and ClO3-
• Al3 and CO32-
• K and CrO42-
• Mg2 and CO32-

NaNO3
Ca(ClO3)2
Al2(CO3)3
K2CrO4
MgCO3
27
Compound names

• Name the cation first, then the anion (left ?
  right across periodic table)
• NaCl sodium chloride

28
Name the following

• Na2O
• BaI2
• Na2SO4
• K2CO3
• Ca(ClO3)2

Sodium oxide
Barium iodide
Sodium sulfate
Potassium carbonate
Calcium chlorate
29
Name the following

• FeF3
• CuO
• Sn(C2H3O2)2

Iron(III) fluoride
Copper(II) oxide
Tin(II) acetate
30
Metallic Bond

• Attraction of metalcations and delocalized
  electrons