Chemistry: Key Ionic Compounds, Prefixes, and Units

Ammonium

NH₄⁺

Nitrite

NO₂⁻

Nitrate

NO₃⁻

Sulfite

SO₃²⁻

Sulfate

SO₄²⁻

Phosphate

PO₄³⁻

Cyanide

CN⁻

Oxalate

C₂O₄²⁻

Carbonate

CO₃²⁻

Hypochloite

ClO⁻

Chlorate

ClO₃⁻

Chlorite

ClO₂⁻

Perchlorate

ClO₄⁻

Hydroxide

OH⁻

Hydrogen Carbonate

HCO₃⁻

Permanganate

MnO₄⁻

mono-

1

di-

2

tri-

3

tetra-

4

penta-

5

hexa-

6

hepta-

7

octa-

8

nona-

9

deca-

10

mega

M, 10⁶

kilo

k, 10³

centi

c, 10⁻²

milli

m, 10⁻³

micro

μ, 10⁻⁶

nano

n, 10⁻⁹

water

H₂O

ammonia

NH₃

methane

CH₄

hydrochloric acid

HCl⁻

sulfuric acid

H₂SO₄

nitric acid

HNO₃

hydrogen

H⁺

helium

He⁰

Lithium

Li⁺

Beryllium

Be

Boron

B

Carbon

C

Nitrogen

N

Oxygen

O

Fluorine

F

Neon

Ne

Sodium

Na

Magnesium

Mg

Aluminum

Al

Silicon

Si

Phosphorus

P

Sulfur

S²⁻

Chlorine

Cl

Argon

Ar

Potassium

K

Scandium

Sc

Titanium

Ti

Vanadium

V

Chromium

Cr

Iron

Fe

Cobalt

Co

Nickel

Ni

Copper

Cu

Zinc

Zn

Gallium

Ga

Germanium

Ge

Arsenic

As

Selenium

Se

Bromine

Br

Calcium

Ca

Manganese

Mn

Krypton

Kr

Group 1A

Alkali Metals

Group 2A

Alkaline earth metals

Group 3-12

Transition Metals

Group 7A

Halogens

Group 8A

Noble Gases

Group 1A ionic charges

1+

Group 2A ionic charges

2+

Group 3A ionic charges

3+

Group 4A ionic charges

varies

Group 5A ionic charges

3-

Group 6A ionic charges

2-

Group 7A ionic charges

1-

Group 8A ionic charges

0