"Representative = Fixed Charge " ions:
Type 1 Cations
Group
IA
IA
IA
IA
IIA
IIA
IIA
IIA
Common Monatomic Anions
Symbol
H+
Li+
Na+
K+
Be2+
Mg2+
Ca2+
Ba2+
Zn2+
Ag+
Name
Group
Symbol
Name
Hydrogen ion
IA
HHydride ion
Lithium ion
VIIA
FFluoride ion
Sodium ion
VIIA
ClChloride ion
Potassium ion
VIIA
BrBromide ion
Beryllium ion
VIIA
IIodide ion
Magnesium ion VIIA
O2Oxide ion
calcium ion
VIA
S2Sulfide ion
barium ion
VA
N3Nitride ion
P3zinc ion
VA
Phosphide ion
Silver ion
"Type 2: Variable Charge" Cations
Ion
(Stock
CommonCommonIon
Symbol
system)
system
Symbol (Stock-system) system)
Cu+
copper(I)
cuprous
Hg22+ mercury(I) mercurous
Cu2+
copper(II)
cupric
Hg2+ mercury(II) mercuric
2+
Fe
iron(II)
ferrous
Pb2+ lead(II)
plumbous
3+
Fe
iron(III)
ferric
Pb4+ lead(IV) plumbic
Sn2+
tin(II)
stannous
Co2+ cobalt(II) cobaltous
4+
Sn
tin(IV)
stannic
Co3+ cobalt(III) cobaltic
Cr2+
chromium(II)
chromous
Ni2+ nickel(II)
nickelous
3+
Cr
chromium(III)
chromic
Ni4+ nickel(IV) nickelic
Mn2+
manganese(II) manganous
Au+ gold(I)
aurous
3+
Mn
manganese(III) manganic
Au3+ gold(III)
auric
Symbols and Charges for Polyatomic Anions
Ion
Formula
NO3NO2CNMnO4OHO22HCO3-
Polyatomic
Ion Name
carbonate
sulfate
sulfite
phosphate
phosphite
perchlorate
cyanide
HSO4-
Polyatomic Ion Name
nitrate
nitrite
cyanide
permanganate
hydroxide
peroxide
hydrogen
carbonate(bicarbonate)
hydrogen sulfate (bisulfate)
Ion
Formula
CO32SO42SO32PO43PO33ClO4CNClO3-
chlorate
HSO3-
hydrogen sulfite (bisulfite)
ClO2-
chlorite
HPO42H2PO4-
hydrogen phosphate
dihydrogen phosphate
ClOCrO42-
hypochlorite
chromate
Cr2O72-
dichromate
C2H3O2 ‐
Acetate Predicting Iionic charge of Representative Elements
Periodic Table Group
Number
Common Lewis symbols
Lewis symbols
2nd period elements
Number of covalent
bonds formed
Prefixes used:
1
mono
6
hexa
2
di
7
hepta
3
tri
8
octa
4
tetra
9
nona
5
penta
10
deca
Basic Geometries created by molecules with 2,3, and 4 electron around the central atom
pairs.
four things three things two things Summary of geometries without/with lone pairs of electrons
Periodic trend in electrongativity
.