Lesson 3.08

Ionic Bonding and Writing Formulas

Common Anion Name Changes

• Nitrogen • Phosphorus • Oxygen • Sulfur • Selenium • Fluorine • Chlorine • Bromine • Iodine

Watch the following video on naming ionic compounds in the main group then write

the correct name for each anion using the steps shown in the video. http://bit.ly/VL5pLe

Ionic Compounds #1 – Binary Naming Practice

1. MgCl2

2. Al2N3

3. KBr

Drag and drop the correctName for each element.

Ionic Compounds #2: Naming with Polyatomic Ions

Polyatomic Ions: A group of atoms that are covalently bonded together and work as one ‘family’ with a charge.

Watch the video about naming compounds with polyatomic ionsIn them. http://bit.ly/WY2xfS

If the formula has 3 or more elements, you have a polyatomic ion. Circle all of the polyatomic ions present.

Al(NO2)3 NaCl NaOH CrF3

(NH4)2S BaCl2 KClO3 AlF3

Download a copy of the polyatomic ion chart here:

http://bit.ly/ZiVM2R

Ionic Compounds #2: Naming with Polyatomic Ions

A. If the metal is a “main-group” metal. Name it.

• Sodium

B. Name the polyatomic ion.• Hydroxide

C. Write the full name• Sodium hydroxide

Example: Name NaOH

Steps for naming compounds with polyatomic ions

Ionic Compounds #2 – Polyatomic Naming Practice

1. MgClO3

2. Al(NO3)3

3. KCN

Drag and drop the correct name for each of the compounds below

Ionic Compounds #3 – “Special” Metal Naming Practice

1. CuClO3

2. ZnS2

3. Pb3N4

4. CuSO4

Watch the following video for help with naming “special” metals:http://bit.ly/13nFg8I

Ionic Naming Flowchart – Copy & Save in Your NotebookHow many different

elements?

2 (binary)

Is cation a “main-group”

metal?

Yes

Name the metal. Then name anion

using the –ide ending

No

Name the metal– include roman

numeral. Then name anion using –ide

ending

3 or more (have

polyatomic)

Is cation a “main-group”

metal?

Yes

Name the metal. Then name the

polyatomic

No

Name the metal – include roman numeral. Then

name polyatomic

http://bit.ly/10mdzfT

All Together Now – Ionic Compound Naming Practice1. CuSO4

2. FeS2

3. CaCO3

4. V2O5

5. NH4Cl

6. SnO2

Number of atoms of each element

1. Li2O

2. Al(NO3) 3

3. (NH4) 3PO4

4. CuCr2O7

How many atoms of oxygen are in one formula unit? Draw a line to the correct number:

One

Two

Four

Six

Seven

Eight

Nine

ALL Ionic Compounds – Comprehension Check1. How many atoms of oxygen are in one formula unit of Ca(NO3)2?

2. What is the name of PbCl2?

3. If the formula for a compound is represented by XY3 and the charge on the Y ion is -1, what is the charge in the X ion?

4. Which of the following contains ionic bonding?a. P2O5 b. CaCl2 c. CO2

5. Which of the following contains both ionic and covalent bonding?a. NaNO3 b. SO4 c. CO2

6. Which of the following is not a name of a valid chemical formula?a. Ammonium nitrate b. Magnesium (II) sulfide

7. What is the formula for iron (II) nitride?

*Please raise your hand when finished and a teacher will be by to check your work

Covalent Naming – Binary compounds

Covalent bonds happen between? Highlight one.a). Metal and non-metalb). Two Non-metalsc). Two Metals

Put a check by the statements that are true:Covalent bonds do have ions.Covalent bonds do not have ions.Covalent bonds do have charges.Covalent bonds do not have charges.

Covalent Naming Prefixes – Print & Put in Your Notebook

Covalent Naming Practice

1. SiO 2

2. BBr3

3. dinitrogen monoxide

4. tetraphosphorus triselenide

Naming Acids – Two Types

Binary Acids• Only 2 elements• H+ bonded to nonmetal• H+ is always written first

HClHFHIHBr

Oxyacids• Three or more elements• H+ bonded to a

polyatomic ion• H+ is always written first

H2SO4

H2SO3

H2CO3

H3PO4

Acids #1 – Naming Oxyacids

Polyatomic ends with –ateH2SO4

Polyatomic is: sulfate

To name:1. Change “-ate” to “-ic”2. Add the word “acid”

sulfuric acid

Polyatomic ends with –iteH2SO3

Polyatomic is: sulfite

To name:1. Change “-ite” to “-ous”2. Add the word “acid”

sulfurous acid

Acids #1 – Naming Oxyacids Practice1. H2CO3

2. H3PO4

3. Acetic acid

4. Hypochlorous acid

Acids #2 – Binary AcidsTo Name:1. Use the prefix hydro- for the first part of the name.

hydro________2. Look at the second element, the nonmetal. Use the

root name of the nonmetal. In this case, the nonmetal is fluorine, so we use the prefix fluor-.

hydrofluor-

3. Add the –ic ending to the nonmetal root name. Fluor- would add –ic to become fluoric.

hydrofluoric

4. Add acid as the second name. hydrofluoric acid

Example: HF

Acids #2 – Naming Binary Acids Practice

1. H2S

2. HCl

3. Hydronitric acid

4. Hydrobromic acid

Naming Acids FlowchartHow many different

elements?

2 (binary acid)

Hydro______ic acid(put root word of 2nd

element)

3 or more (have polyatomic

- Oxyacid)

Does the polyatomic end in

–ite or -ate

-ite

*Name polyatomic, change “-ite” to “-ous”

*Add word “acid” to name

-ate

* Name polyatomic, change “-ate” to “-ic”

*Add word “acid” to name

Ex: H3PO3

All Acid Naming Practice1. H2S

2. H2SO3

3. H2SO4

4. Chloric acid

5. Chlorous acid

6. Hypochlorous acid

3.08 – Naming and Writing Formulas Review

IonicBinaryNaCl

With PolyatomicsLiOH

With “special” metalsCuSO4

Thank You!

• It has been great working with you for naming and writing formulas for ionic and covalent compounds! You will use this for the rest of module 3, module 4 and most of segment 2.

• Please use our other recorded teaching sessions for the other lessons. Don’t forget that you can use them to review previous lessons too!