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CHEMICAL BONDINGCHEMICAL BONDINGCHEMICAL BONDINGCHEMICAL BONDING

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Types of BondsTypes of Bonds• IonicIonic——transfer transfer of 1 or more electrons from one of 1 or more electrons from one

atom to another (one loses, the other gains) atom to another (one loses, the other gains) forming oppositely charged ions that attract one forming oppositely charged ions that attract one anotheranother

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Types of BondsTypes of Bonds

• CovalentCovalent——some valence electrons some valence electrons sharedshared between atoms between atoms

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Chemical Bonding Vocabulary (Ch. 7 & 8)

1. Chemical formula

2. Ionic bonds

3. Ionic compounds

4. Metallic bonds

5. Octet rule

6. Valence electrons

7. Covalent bond

8. Diatomic molecule

9. Double covalent bond

10.Hydrogen bond

11.Molecular formula

12.Polar bond

13.Polyatomic ion

14.Single covalent bond

15.Triple covalent bond

Word Definition My Own Words Pic. Or Ex.

CHEMICAL B

ONDING

IONIC

COMPO

UNDS

• Balance the charges• Use “-ide” at the

end of nonmetal

Roman numeral

1+2+

Elements Balance Charges Formula Name

Calcium and Fluorine

Aluminum and Oxygen

QR CODE REVIEW

Use the flow chart to predict names and formulas. Choose your answer and scan the code to check. Fill in the answer sheet as you go.

Write or summarize the question

Write your answer

Show your work or explain your reasoning for the correct answer

1. What is the name for NaCl?

• * sodium chloride B. sodium chlorine C. sodium I chloride

2. What is the correct formula for iron (III) chloride?

• A. FeCl B. Fe3Cl * FeCl3

3. What is the correct formula for Al+3 and Cl-1?

• A. Cl3Al B. AlCl * AlCl3

4. What is the name for CaF?

• * calcium fluoride B. calcium II fluorine C. calcium II fluoride

5. What is the correct formula for compound formed when a sodium ion

combines with a fluoride ion?• A. NaF2 B. NaF C. Na2F

6. What is the correct formula for copper (II) chloride?

• A. CuCl B. Cu2Cl * CuCl2

7. What is the correct formula for calcium oxide ?

• A. CaO2 * CaO C. Ca2O

8. What is the name for MgS?

A. magnesium II sulfide B. magnesium sulfur * magnesium sulfide

9. What is the correct formula for silver chloride?

• A. SiCl * AgCl C. AgCl3

10. What is the formula formed by a potassium ion and a sulfur ion?

• * K2S B. KS C. KS2

11. What is the compound formed from Ca +2 and F-1?

• * calcium fluoride B. calcium II fluorine C. calcium II fluoride

12. What is the formula formed by Li +1 and O-2?

• * Li2O B. LiO C. LiO2

TRANSITION METALS

Can have more than one chargeEx: chromium (II) and chromium

(III)

chromium (II) oxidechromium (III) oxide

Special Ions

Polyatomic Ion•A tightly bound group of atoms that act as a unit but have a charge•Ex:

– OH- hydroxide

– SO42- sulfate

– SO32- sulfite

Ex: sodium sulfate

Ionic Compound Practice--name to formulaName Formula

Iron (III) oxide

Sodium chromate

Calcium hydroxide

Ionic Compound Practice—formula to name

Formula *If the metal is a transition metal, you will need to balance the charges to determine the Roman numeral.

Name

Na2SO3

SnO2

BeCl2

Ionic Compounds• Metal + Nonmetal

–Metals tend to lose electrons to become positively charged (cations)

–Nonmetals tend to gain electrons to become negatively charged (anions)

Example

FK Dot Diagrams

(show valence electrons)

FK+ _

Ions

FK+ _

The ionic bond is the attractionbetween the positive K+ ion

and the negative F- ion

KFPut the symbols together and you

have the chemical formula

Naming Ionic Compounds

• For the first element, use the full element name– Potassium

• For the second element, change the ending to “-ide”– Fluoride

KF

Potassium Fluoride