Chem. Nomenclature

Aluminum

Al

+3

metal

Argon

Ar

0

nonmetal

Arsenic

As

-3

nonmetal

Barium

Ba

+2

metal

Berylium

Be

+2

metal

Boron

B

+3

nonmetal

Bromine

Br

-1

nonmetal

Cadmuim

Cd

+2

metal

Calcium

Ca

+2

metal

Carbon

C

-4

nonmetal

Chlorine

Cl

-1

nonmetal

Cobalt

Co

+2

metal

Chromium

Cr

+2 

metal

Copper

Cu

+1

metal

Fluorine

F

-1

nonmetal

Gold

Au

+1

metal

Helium

He

0

nonmetal

Hydrogen

H

+1

nonmetal

Iodine

I

-1

nonmetal

Iron

Fe

+2

metal

Lead

Pb

+2

metal

Lithium

Li

+1

metal

Magnesium

Mg

+2

metal

Manganese

Mn

+2

metal

Mercury

Hg

+1

metal

Neon

Ne

0

nonmetal

Nickel

Ni

+2

metal

Nitrogen

N

-3

nonmetal

Oxygen

O

-2

nonmetal

Phosphorous

P

-3

nonmetal

Platinum

Pt

+2

metal

Potassium

K

+1

metal

Selenium

Se

-2

nonmetal

Silicon

Si

-4

nonmetal

Silver

Ag

+1

metal

Sodium

Na

+1

Metal

Strontium

Sr

+2

metal

Sulfur

S

-2

nonmetal

Tin

Sn

+2

metal

Uranium

U

+3

metal

Xenon

Xe

0

nonmetal

Zinc

Zn

+2

metal

Cesium

Cs

+1

metal

Binary Ionic Compounds Composition

 only two elements

metal cation+nonmetal anion

 

Naming and Writing Formulas for Binary Ionic Compounds

Naming:

1.Write name of 1st element

2. Write name of 2nd element. Change ending to ide

 

Writing Formula:

1. Write symbol and charge of cation.

2. Write symbol and carge of anion

3. Balance total positive and negative charge to equal zero

Ternary Ionic Compounds Composition

Three or more elements

metal cation+polytomic ion

Naming and Writing Formulas of Ternary Ionic Compounds

Naming: 

1. Write name of 1st element.

2. Write name of polyatomic ion. most end in -ate or -ite

 

Writing Formulas:

1. Write symbol and charge of cation. 

2. Write symbol for polyatomic ion.

3. Balance total positive and negative charge to equal zero

Binary Compounds Composition

  • Only two elements; no oxygen
  • H + nonmetal anion
  • Always “hydro—-acid”

 

 

Naming and Writing Formulas for Binary Acids

Naming: 

1. Name th enonmetal stem.

2. Add prefix hydro-.

3. Change ending to -ic acid.

 

Writing Formulas:

1. Write H for “hydro”.

2. Write symbol for anion

3. Add teh word “acid”.

4. Balance total positive and negative charge to equal zero

Ternary Acids Composition
three elements: oxygen, hydrogen, polyatomic ion
Naming and Writing Formulas for Ternary Acids

Naming: 

1. Name the polyatoic ion

2. If ion ends in -ate, change to “-ic acid”.

If ion ends in -ite, change to “-ous acid”. 

 

Writing Formulas:

1. Write H for acid.

2. Write polyatomic ion

3. Balance total positive and negative charge to equal zero

Binary Molecular Comounds Composition

two elements

nonmetal+nonmetal

Naming and Writing Formulas for Binary Molecular Compounds

Naming: 

1. Name 1st element. 

2. If there’s more than one, add prefix to denote number of atoms

3. Name 2nd element.

4. Always add prefix to second element to denote the number of atoms

;

Writing Formula:

1. Write symbol for 1st element

2. Add subscript to denote number if more than atom

3. Write symbol for 2nd element

4. Add the subscript to denote number if more than one atom.

O2
oxygen
H2
hyrdrogen
F2
Flourine
Br2
Bromine
N2
Nitrogen
Cl2
chlorine
I2
iodine
common cations

form when atoms loose ions

*a positively charged ion

NH4+ ; ; ; ; ; ; ; ; ;ammonium

H3O+ ; ; ; ;hydronium

H+ ; ; ; ; ; ; ;hydrogen (proton)


NH4+
ammonium
H3O+
hydronium
H+
hydrogen (proton)
Anions

form when atoms gain ions

*a negatively charged ion

CO3-2

carbonate

;

;

anion

HCO3-1

hyrdrogen carbonate (bicarbonate)

;

;

anion

PO4-3

phosphate

;

;

anion

HPO4-2

hydrogen phosphate

;

anion

H2PO4-1

dihydrogen phosphate

;

anion

SO4-2

sulfate

;

;

anion

HSO4-1

hydrogenulfate (bisulfate)

;

;

anion

SO3-2

sulfite

;

;

anion

HSO3-1

hydrogen sulfite (bisulfate)

;

;

anion

OH-1

hydroxide

;

;

anion

ClO4-1

perchlorate

;

;

anion

ClO3-1

chlorate

;

;

anion

ClO2-1

chlorite

;

;

anion

ClO-1;or OCl-1

hypochlorite

;

;

anion

NO3-1

nitrate

;

;

anion

NO2-1

nitrite

;

;

anion

Cr2O7-2

dichromate

;

;

;

anion

CrO4-1

chromate

;

;

anion

MnO4-1

permanganate

;

;

anion

C2H3O2-1

acetate

;

;

;

anion

Fe+3
iron (III)
Fe+2
iron (II)
Cu+2
copper (II)
Cu+1
copper (I)
Co+3
cobalt (III)
Co+2
cobalt (II)
Sn+4
tin (IV)
Sn+2
tin (II)
Pb+4
lead (IV)
Pb+2
lead (II)
Hg+2
mercury (II)
Hg2+2
Mercury (I)
transition metal cations
use roman numerals