Chemistry H - Oxidation Numbers

Aluminum - Al

+3

Barium - Ba

+2

Calcium - Ca

+2

Chromium - - Cr

+2, +3

Copper - - Cu

+1, +2

Hydrogen - - H

+, -1

Iron - - Fe

+2, +3

Lead - - Pb

+2, +4

Lithium - Li

+1

Magnesium - Mg

+2

Manganese - Mn

+2

Nickel - - Ni

+2, +3

Potassium - K

+1

Boron - B

+3

Silver - Ag

+1

Sodium - Na

+1

Tin - - Sn

+2, +4

Zinc - Zn

+2

Carbon - - C

+4, -4

Bromine - Br

-1

Chlorine - Cl

-1

Fluorine - F

-1

Iodine - I

-1

Oxygen - O

-2

Sulfur - S

-2

Nitrogen - N

-3

Gold - Au

+1

Phosphorus - P

-3

Silicon - - Si

+4, -4

Mercury - - Hg

+1, +2

What comes first in a chemical bond?

A cation

What comes second in a chemical bond?

An anion

Acetate → -1

C₂H₃O₂

Carbonate → -2

CO₃

Nitrate → -1

NO₃

Nitrite → -1

NO₂

Phosphate → -3

PO₄

Sulfate → -2

SO₄

Sulfite → -2

SO₃

Ammonium → +1

NH₄

Chromate → -2

CrO₄

Hydronium → +1

H₃O

Chlorate → -1

ClO₃

Chlorite → -1

ClO₂

Hydroxide → -1

OH

Bisulfate → -1

HSO₄

Bicarbonate → -1

HCO₃

What does ‘bi’ do when added as a prefix in a polyatomic ion?

It adds a hydrogen.

When it ends in -ide, it is an?

Element

When it ends in -ate or -ite, it is a?

Polyatomic ion

Cyanide → -1

CN

Perchlorate → -1

ClO₄

Bromate → -1

BrO₃

What ending has the least oxygen atoms?

-ite

What ending has one more oxygen atom than -ite?

-ate

What prefix adds an oxygen atom?

Per-