nomenclature unit 3- as can be found in chapter 4 of your world of chemistry textbook

NomenclatureNomenclature

Unit 3- as can be found in Chapter 4 of your World of Chemistry textbookUnit 3- as can be found in Chapter 4

of your World of Chemistry textbook

Georgia Performance StandardGeorgia Performance Standard

SC1d- Use IUPAC nomenclature for both chemical names and formulas: Ionic Compounds (Binary & Tertiary) Covalent Compounds (Binary & Tertiary) Acidic Compounds (Binary & Tertiary)

SC1d- Use IUPAC nomenclature for both chemical names and formulas: Ionic Compounds (Binary & Tertiary) Covalent Compounds (Binary & Tertiary) Acidic Compounds (Binary & Tertiary)

Types of CompoundsTypes of Compounds

As identified by the International Union of Pure and Applied Chemistry (IUPAC)

Why do we do things the IUPAC way? Having a standard way of naming and writing

formulas for compounds eliminates error and misunderstandings.

As identified by the International Union of Pure and Applied Chemistry (IUPAC)

Why do we do things the IUPAC way? Having a standard way of naming and writing

formulas for compounds eliminates error and misunderstandings.

Binary Ionic CompoundsBinary Ionic Compounds

Type I Cation - is a metal

from the representative element set!

Anion - is a nonmetal

Type I Cation - is a metal

from the representative element set!


Type II Cation - is a transition

metal Transition metal

elements can have more than one charge or oxidation number as we call it.


Type II Cation - is a transition

metal Transition metal

elements can have more than one charge or oxidation number as we call it.


Type I (Binary Ionic) Compounds


Naming 1. The cation gets the element’s name. (Easy

peasy!) 2. The anion uses the element’s name but the

ending changes to -ide.

Example - CaCl2 - calcium chloride

Na3P - sodium phosphide

Naming 1. The cation gets the element’s name. (Easy

peasy!) 2. The anion uses the element’s name but the

ending changes to -ide.

Example - CaCl2 - calcium chloride

Na3P - sodium phosphide

Name these!Name these!

MgO Magnesium oxide AlF3

Aluminum fluoride Ca2N3

Calcium nitride

MgO Magnesium oxide AlF3

Aluminum fluoride Ca2N3

Calcium nitride



Writing Formulas Write the symbol for the cation

It’s element symbol and its charge

Write the symbol for the anion It’s element symbol and its charge

Determine how many of each ion are necessary so that the total charge for the compound adds up to zero!

Writing Formulas Write the symbol for the cation

It’s element symbol and its charge

Write the symbol for the anion It’s element symbol and its charge

Determine how many of each ion are necessary so that the total charge for the compound adds up to zero!

ExamplesExamples

Sodium sulfide Na+ S2-

2(Na+) + S2- = Na2S

Barium nitride Ba2+ N3-

3(Ba2+) + 2(N3-) = Ba3N2

Sodium sulfide Na+ S2-

2(Na+) + S2- = Na2S

Barium nitride Ba2+ N3-

3(Ba2+) + 2(N3-) = Ba3N2

Write the formulas for these!Write the formulas for these!

Potassium chloride

Gallium oxide

Beryllium iodide

Potassium chloride

Gallium oxide

Beryllium iodide

Writing Formulas- the easy way!Writing Formulas- the easy way!

The criss- cross method Write the symbols and charges for the cation

and anion as before The cross the charges over to the other element!

(lose the +/- signs) Example - strontium nitride

Sr2+ N3-

Sr3N2 IT WORKS EVERY TIME!

The criss- cross method Write the symbols and charges for the cation

and anion as before The cross the charges over to the other element!

(lose the +/- signs) Example - strontium nitride

Sr2+ N3-

Sr3N2 IT WORKS EVERY TIME!

Type II (Binary Ionic) Compounds


Naming The cation gets the element’s name. However,

since it is a transition metal that can have more than 1 charge, you MUST write the original charge of the cation as Roman Numerals after the name of the cation.

The anion uses the element’s name, changing the ending to -ide.

Naming The cation gets the element’s name. However,

since it is a transition metal that can have more than 1 charge, you MUST write the original charge of the cation as Roman Numerals after the name of the cation.

The anion uses the element’s name, changing the ending to -ide.

ExamplesExamples

FeCl2 Cation (Fe) - had an original charge of 2+ Iron (II) chloride

FeCl3

Cation (Fe) - had an original charge of 3+ Iron (III) chloride

FeCl2 Cation (Fe) - had an original charge of 2+ Iron (II) chloride

FeCl3

Cation (Fe) - had an original charge of 3+ Iron (III) chloride

Try These!Try These!

Cu2S

CuS

Au2S3

V2O5

Cu2S

CuS

Au2S3

V2O5



Writing Formulas - this is easy! Cation- the name already gives you the charge of the

element. Anion is just like Type I, Criss- cross the charges! Examples

Cobalt (III) bromide Tin (IV) sulfide Co3+ Br- Sn4+ S2-

CoBr3 Sn2S4 (can be reduced)

SnS2

Writing Formulas - this is easy! Cation- the name already gives you the charge of the

element. Anion is just like Type I, Criss- cross the charges! Examples

Cobalt (III) bromide Tin (IV) sulfide Co3+ Br- Sn4+ S2-

CoBr3 Sn2S4 (can be reduced)

SnS2


Chromium (II) oxide

Lead (II) fluoride

Lead (IV) fluoride

Copper (II) carbide

Chromium (II) oxide

Lead (II) fluoride

Lead (IV) fluoride

Copper (II) carbide

Polyatomic IonsPolyatomic Ions

These are ions that have more than 1 atom in it BUT act as a single ion with a single charge!!!!!!!

See p. In your textbook

Yes, you need to know these!

These are ions that have more than 1 atom in it BUT act as a single ion with a single charge!!!!!!!

See p. In your textbook

Yes, you need to know these!

Type I (Tertiary Ionic) Compounds


Naming Cation - Named the same way as Type I Binary

is Anion - Use the name of the polyatomic ion,

don’t change the ending!

Naming Cation - Named the same way as Type I Binary

is Anion - Use the name of the polyatomic ion,

don’t change the ending!

ExamplesExamples

NaNO3

Sodium nitrate

Ca(OH)2

Calcium hydroxide

Al(SO3)3

Aluminum sulfite

(NH4)3PO4

Ammonium phosphate

NaNO3

Sodium nitrate

Ca(OH)2

Calcium hydroxide

Al(SO3)3

Aluminum sulfite

(NH4)3PO4

Ammonium phosphate


BaSO4

Li2CO3

Ga(NO2)3

BaSO4

Li2CO3

Ga(NO2)3



Writing Formulas Cation - Write the symbol and the charge Anion - Write the polyatomic ion and charge Criss- cross the charges!

IF you are going to cross a charge other than 1 over to the polyatomic ion… put the polyatomic ion in parentheses first!

Writing Formulas Cation - Write the symbol and the charge Anion - Write the polyatomic ion and charge Criss- cross the charges!

IF you are going to cross a charge other than 1 over to the polyatomic ion… put the polyatomic ion in parentheses first!

ExamplesExamples

Magnesium cyanide Lithium phosphate

Mg2+ CN- Li+ PO43-

Mg(CN)2 Li3PO4

Magnesium cyanide Lithium phosphate

Mg2+ CN- Li+ PO43-

Mg(CN)2 Li3PO4


Strontium chlorate

Potassium sulfate

Ammonium oxide

Strontium chlorate

Potassium sulfate

Ammonium oxide

Type II (Tertiary Ionic) Compounds


Naming Tie together using the Roman Numerals for the

transition metals with the name of the polyatomic ion.

Example Co(NO3)3 NiCO3

Cobalt (III) nitrate Nickel (II) carbonate

Naming Tie together using the Roman Numerals for the

transition metals with the name of the polyatomic ion.

Example Co(NO3)3 NiCO3

Cobalt (III) nitrate Nickel (II) carbonate


Ti(OH)2

Zn(ClO)3

Au(ClO3)3

Ti(OH)2

Zn(ClO)3

Au(ClO3)3



Writing Formulas - this is easy too! Cation - Write the symbol and charge for the

transition metal Anion - Write the symbol for the polyatomic

ion and its charge Criss - cross the charges.

Again, if you are crossing a number to the polyatomic ion that is larger than 1, then put the polyatomic ions in parentheses first!

Writing Formulas - this is easy too! Cation - Write the symbol and charge for the

transition metal Anion - Write the symbol for the polyatomic

ion and its charge Criss - cross the charges.

Again, if you are crossing a number to the polyatomic ion that is larger than 1, then put the polyatomic ions in parentheses first!

ExamplesExamples

Lead (IV) sulfate Pb4+ SO4

2-

Pb2(SO4)4

Pb(SO4)2

Lead (IV) sulfate Pb4+ SO4

2-

Pb2(SO4)4

Pb(SO4)2

Copper (I) nitrite Cu+ NO3

-

CuNO3

Copper (I) nitrite Cu+ NO3

-

CuNO3

nomenclature unit 3- as can be found in chapter 4 of your world of chemistry textbook

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