1. IONIC COMPOUNDS
To name an ionic compound name the cation, then name the anion
ANIONS
Nonmetals form anions
Name as the root of the elemental name, ending in –ide
Anion charges are determined from the element’s position on the periodic table
EX6-1 (of 30)

2. H (1-)
Group 17 (1-)
Group 16 (2-)
Group 15 (3-)
EX6-2 (of 30)

3. O2-
oxide
N3-
nitride H-
hydride
EX6-3 (of 30)

4. CATIONS
Metals form cations
Name as the elemental name
Cation charges are determined from the element’s position on the periodic table
EX6-4 (of 30)

5. Group 1 (1+)
Group 2 (2+)
Group 11 (Ag+)
Group 12 (Zn2+, Cd2+)
Group 13 (Al3+, Ga3+, In3+)
EX6-5 (of 30)

6. Ca2+
calcium K+
potassium
Al3+
aluminum
EX6-6 (of 30)

7. The name of an ionic compound only gives the information necessary to predict its correct formula, based upon equalizing the ion charges
calcium chloride
CaCl2
sodium phosphide
Na3P
barium nitride
Ba3N2
manganese iodide ?
EX6-7 (of 30)

8. Metals other than
Group 1 (1+), Group 2 (2+),
Group 11 (Ag+), Group 12 (Zn2+, Cd2+), and Group 13 (Al3+, Ga3+, In3+)
can form multiple cations
EX6-8 (of 30)

9. Mn2+
Mn3+
Mn4+
Mn6+
Mn7+
manganese
(II)
George Foreman
(III)
George Foreman
(IV)
George Foreman
(VI)
George Foreman
(VII)
George Foreman
These metal cations must be named with the charge, written in parenthesis
EX6-9 (of 30)

10. manganese (II) iodide
2+ 1-
MnI2
manganese (IV) iodide
4+ 1-
MnI4
cobalt (III) sulfide
Co2S3
uranium (VI) oxide
6+ 2-
UO3
iron oxide ?
EX6-10 (of 30)

11. Name these ionic compounds :
SrF2
strontium fluoride
K2O
potassium oxide
AuI3 1-
gold (III) iodide
PbBr2 1-
lead (II) bromide
Cu2O 2-
copper (I) oxide
auric iodide
EX6-11 (of 30)

12. NAMING POLYATOMIC IONS
1) Cations that are polyatomic
NH4+
ammonium
UO22+
uranyl
Hg22+
mercury (I)
EX6-12 (of 30)

13. 2) Anions that are polyatomic
Name polyatomic anions that contain oxygen as the root of the elemental name, ending in –ate or –ite
CO32-
carbonate
NO3-
nitrate
NO2-
nitrite
PO43-
phosphate
SO42-
sulfate
SO32-
sulfite
EX6-13 (of 30)

14. Some elements can make 4 oxyions
ClO4-
perchlorate
ClO3-
chlorate
ClO2-
chlorite
ClO-
hypochlorite
EX6-14 (of 30)

15. -ate ions
3 O’s
4 O’s
EX6-15 (of 30)

16. Give the formulas of the following ionic compounds:
sodium bicarbonate
1+ 1-
NaHCO3
barium hydroxide
2+ 1-
Ba(OH)2
iron (III) nitrite
3+ 1-
Fe(NO2)3
EX6-16 (of 30)

17. Name the following ionic compounds:
LiNO3
lithium nitrate
Co(CN)3
cobalt (III) cyanide
EX6-17 (of 30)

18. HYDRATES
Compounds with water molecules trapped in their crystals
Name ionic compound first, then a prefix for the number of waters, followed by -hydrate
1 mono
2 di
3 tri
4 tetra
5 penta
6 hexa
7 hepta
8 octa
9 nona
10 deca
EX6-18 (of 30)

19. HYDRATES
Compounds with water molecules trapped in their crystals
Name ionic compound first, then a prefix for the number of waters, followed by -hydrate
copper (II) chloride hexahydrate
CuCl2.6H2O
Fe(NO3)3.9H2O
iron (III) nitrate nonahydrate
EX6-19 (of 30)

20. COVALENT COMPOUNDS
BINARY COMPOUNDS
Name the 1st nonmetal as element name, using prefix if more than 1 atom
Name the 2nd nonmetal with –ide, always use a prefix
CO2
carbon dioxide CO
carbon monoxide
N2O
dinitrogen monoxide
EX6-20 (of 30)

21. Base formulas on prefixes
Phosphorus triiodide
PI3
diarsenic pentasulfide
As2S5
EX6-21 (of 30)

22. NAMING ACIDS
SVANTE ARRHENIUS
Proposed the first definitions of acids and bases
Arrhenius Acid – A compound that loses hydrogen ions in solution
Arrhenius Base – A compound that loses hydroxide ions in solution
Out of water – named as an ionic compound
HCl (g)
hydrogen chloride
EX6-22 (of 30)

23. Dissolved in water – name based on the acid’s anion
Anion in acid ends in –ide
hydro–root–ic acid
Anion in acid ends in –ate
root–ic acid
Anion in acid ends in –ite
root–ous acid
HBr
hydrogen bromide
hydrobromic acid
EX6-23 (of 30)

24. Dissolved in water – name based on the acid’s anion
Anion in acid ends in –ide
hydro–root–ic acid
Anion in acid ends in –ate
root–ic acid
Anion in acid ends in –ite
root–ous acid
H2S
hydrogen sulfide
hydrosulfuric acid
EX6-24 (of 30)

25. Dissolved in water – name based on the acid’s anion
Anion in acid ends in –ide
hydro–root–ic acid
Anion in acid ends in –ate
root–ic acid
Anion in acid ends in –ite
root–ous acid
HNO3
hydrogen nitrate
nitric acid
EX6-25 (of 30)

26. Dissolved in water – name based on the acid’s anion
Anion in acid ends in –ide
hydro–root–ic acid
Anion in acid ends in –ate
root–ic acid
Anion in acid ends in –ite
root–ous acid
H2SO4
hydrogen sulfate
sulfuric acid
EX6-26 (of 30)

27. Dissolved in water – name based on the acid’s anion
Anion in acid ends in –ide
hydro–root–ic acid
Anion in acid ends in –ate
root–ic acid
Anion in acid ends in –ite
root–ous acid
H3PO3
hydrogen phosphite
phosphorous acid
EX6-27 (of 30)

28. FORMULAS OF ACIDS
Anion in acid ends in –ide
hydro–root–ic acid
Anion in acid ends in –ate
root–ic acid
Anion in acid ends in –ite
root–ous acid
hydrofluoric acid
hydrogen fluoride HF
EX6-28 (of 30)

29. FORMULAS OF ACIDS
Anion in acid ends in –ide
hydro–root–ic acid
Anion in acid ends in –ate
root–ic acid
Anion in acid ends in –ite
root–ous acid
carbonic acid
hydrogen carbonate
H2CO3
EX6-29 (of 30)

30. FORMULAS OF ACIDS
Anion in acid ends in –ide
hydro–root–ic acid
Anion in acid ends in –ate
root–ic acid
Anion in acid ends in –ite
root–ous acid
nitrous acid
hydrogen nitrite
HNO2
EX6-30 (of 30)