Polyatomic Ions

1
Polyatomic Ions
2
Common Polyatomic Ions
Names of Common Polyatomic Ions
Ion
Ion
Name
Name
3
Vocabulary - Chemical Bonds
Vocabulary Chemical Bonds
Vocabulary Chemical Bonds
Keys
http//www.unit5.org/chemistry/Nomenclature.html
4
Electronegativities
1A
8A
1
1
2A
3A
4A
5A
6A
7A
2
2
3
3
3B
4B
5B
6B
7B
1B
2B
8B
Period
4
4
5
5
6
6
7
Hill, Petrucci, General Chemistry An Integrated
Approach 2nd Edition, page 373
5
Review
TWO Elements
Metal (fixed) Non-metal
Group 1, Group 2, Ag, Zn, Al
NaCl sodium chloride
binary -ide
Metal (variable) Non-metal
Transition Elements
STOCK system (Roman Numeral)
CrCl2 chromium (II) chloride
Sn stannum Pb plumbum Cu cuprum Au
aurum Fe ferrum
Cr2 Cl1-
OLD system -ic (higher) -ous (lower)
CuCl2 cupric chloride
Cu1 or Cu2
Three or more Elements
Ternary Compounds
Polyatomic Ions -ate (one more O) -ite (one
less O)
LiNO3 lithium nitrate
LiNO2 lithium nitrite
Li3N lithium nitride
(binary compound)
6
Polyatomic Ions -ate (one more O) -ite (one
less O)
2 less oxygen
1 less oxygen
1 more oxygen
Memorize
per____ate NORMAL _____ite
hypo_____ite
_____ate
chlorate nitrate carbonate sulfate phosphate
ClO31- NO31- CO32- SO42- PO43-
chlorite nitrite carbonite sulfite phosphite
ClO21- NO21- CO22- SO32- PO33-
perchlorate pernitrate percarbonate persulfate per
phosphate
ClO41- NO41- CO42- SO52- PO53-
ClO1- NO1- CO2- SO22- PO23-
hypochlorite hyponitrite hypocarbonite hyposulfite
hypophosphite
ammonium, cyanide, hydroxide
NH41
CN1-
OH1-
How many atoms are in a formula unit of ammonium
hypophosphite?
18
NH41
PO23-
3
(NH4)3PO2
Nonmetal Nonmetal (Greek prefixes)DO NOT
REDUCE!
Mono Di Tri Tetra Penta Hexa
Hepta Octa Nona Deca
1 2 3 4 5
6 7 8 9 10