Lewis Diagrams For Ionic and Covalent Compounds. First, we’ll consider the ionic compound strontium fluoride.

Lewis Diagrams For Ionic and

Covalent Compounds

First, we’ll consider the ionic compound strontium fluoride.

First, we’ll consider the ionic compound strontium fluoride.

First, we’ll consider the ionic compound strontium fluoride.

Sr

First, we’ll consider the ionic compound strontium fluoride.

First, we’ll consider the ionic compound strontium fluoride.

Sr FF

First, we’ll consider the ionic compound strontium fluoride.

Sr FF

First, we’ll consider the ionic compound strontium fluoride.

Sr FF

First, we’ll consider the ionic compound strontium fluoride.

Sr FF

First, we’ll consider the ionic compound strontium fluoride.

Sr FF

Strontium fluoride will be an ionic compound

First, we’ll consider the ionic compound strontium fluoride.

Sr FF

Electrons will be transferred from the metal to the non-metal atoms.

First, we’ll consider the ionic compound strontium fluoride.

Sr FF

First, we’ll consider the ionic compound strontium fluoride.

Sr FF

First, we’ll consider the ionic compound strontium fluoride.

Sr FF

First, we’ll consider the ionic compound strontium fluoride.

Sr FF

First, we’ll consider the ionic compound strontium fluoride.

Sr FF

First, we’ll consider the ionic compound strontium fluoride.

Sr FF

First, we’ll consider the ionic compound strontium fluoride.

Sr FF

First, we’ll consider the ionic compound strontium fluoride.

Sr FF

First, we’ll consider the ionic compound strontium fluoride.

Sr FF

First, we’ll consider the ionic compound strontium fluoride.

Sr FF

First, we’ll consider the ionic compound strontium fluoride.

Sr FF

First, we’ll consider the ionic compound strontium fluoride.

Sr FF

First, we’ll consider the ionic compound strontium fluoride.

Sr FF2+

First, we’ll consider the ionic compound strontium fluoride.

Sr FF2+

First, we’ll consider the ionic compound strontium fluoride.

Sr FF2+

First, we’ll consider the ionic compound strontium fluoride.

Sr FF2+–

First, we’ll consider the ionic compound strontium fluoride.

Sr FFFluoride ion

2+–

First, we’ll consider the ionic compound strontium fluoride.

Sr FF2+–

Fluoride ion

First, we’ll consider the ionic compound strontium fluoride.

Sr FF2+– –

Fluoride ion

First, we’ll consider the ionic compound strontium fluoride.

Sr FF2+– –

Lewis Diagram for Strontium

Fluoride

First, we’ll consider the ionic compound strontium fluoride.

Sr FF2+– –

Has a Stabl

e Octet

Has a Stabl

e Octet

First, we’ll consider the ionic compound strontium fluoride.

Sr FF2+– –

Has no valence electron

s left

First, we’ll consider the ionic compound strontium fluoride.

Sr FF2+– –

Formula for strontium fluoride is

First, we’ll consider the ionic compound strontium fluoride.

Sr FF2+– –

Formula for strontium fluoride is SrF2

Now we’ll do another example. This time we’ll draw the Lewis diagram for the ionic compound potassium sulphide.

Draw the Lewis diagram for the ionic compound potassium sulphide.

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K

Draw the Lewis diagram for the ionic compound potassium sulphide.

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK KI need to gain

1 e– here.

I need to gain1 e– here.

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK KI need to gain

1 e– here.

I need to gain1 e– here.

I can lose this one valence e–.

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK KThe compound formed will be ionic.Electrons will be transferred, NOT shared.

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK KThe compound formed will be ionic.Electrons will be transferred, NOT shared.

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK KThe compound formed will be ionic.Electrons will be transferred, NOT shared.

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK KA

potassium cation

+ +

A potassium

cation

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K+ +

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK KA

sulphide anion

+ +2–

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K

The Lewis Diagram for Potassium

Sulphide

+ +2–

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K+ +2–

There are 2 potassium ions for every sulphide ion, so the formula for potassium sulphide is K2S.

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K+ +2–

There are 2 potassium ions for every sulphide ion, so the formula for potassium sulphide is K2S.

Draw the Lewis diagram for the ionic compound potassium sulphide.

SK K+ +2–

There are 2 potassium ions for every sulphide ion, so the formula for potassium sulphide is K2S.

Lewis diagrams can also be used to show the formation of covalent compounds.

Lewis diagrams can also be used to show the formation of covalent compounds. In this example, we’ll show how the covalent compound hydrogen selenide is formed.

H He

Li Be B C N O F Ne

Na Mg Al Si P S Cl Ar

Hydrogen can either lose, or share its valence e–.

We’ll show how the covalent compound hydrogen selenide is formed.When hydrogen forms a compound with selenium, the compound, in the gaseous form, is found to be covalent.

We’ll show how the covalent compound hydrogen selenide is formed.When hydrogen forms a compound with selenium, the compound, in the gaseous form, is found to be covalent. So in this case hydrogen shares its valence electron rather than losing it.

We’ll show how the covalent compound hydrogen selenide is formed.

Se

H

HA hydrogen

atom with one valence e–

We’ll show how the covalent compound hydrogen selenide is formed.

Se

H

We’ll show how the covalent compound hydrogen selenide is formed.

Se

H

HA Se atom with 6

valence e–’s

We’ll show how the covalent compound hydrogen selenide is formed.

Se

H

HThis electron will be SHARED, not lost!

We’ll show how the covalent compound hydrogen selenide is formed.

Se

H

H

I need to gain 1 e–

here.

I need to gain 1 e–

here.

We’ll show how the covalent compound hydrogen selenide is formed.

Se

H

H

Another hydrogen atom

We’ll show how the covalent compound hydrogen selenide is formed.

Se

H

HThe entire atoms will move, rather than just their electrons.

We’ll show how the covalent compound hydrogen selenide is formed.

Se

H

H

We’ll show how the covalent compound hydrogen selenide is formed.

Se

H

H

We’ll show how the covalent compound hydrogen selenide is formed.

Se

H

H

We’ll show how the covalent compound hydrogen selenide is formed.

Se

H

H

We’ll show how the covalent compound hydrogen selenide is formed.

Se

H

H

We’ll show how the covalent compound hydrogen selenide is formed.

Se

H

H

We’ll show how the covalent compound hydrogen selenide is formed.

Se

H

H

We’ll show how the covalent compound hydrogen selenide is formed.

Se

H

H

We’ll show how the covalent compound hydrogen selenide is formed.

Se

H

H

We’ll show how the covalent compound hydrogen selenide is formed.

Se

H

H

We’ll show how the covalent compound hydrogen selenide is formed.

Se

H

H

We’ll show how the covalent compound hydrogen selenide is formed.

SeH

H

We’ll show how the covalent compound hydrogen selenide is formed.

SeH

H

These 2 valence e–’s are shared between

Se and H

These 2 valence e–’s are shared between

Se and H

We’ll show how the covalent compound hydrogen selenide is formed.

SeH

H

A COVALENT bond

A COVALENT bond

We’ll show how the covalent compound hydrogen selenide is formed.

SeH

H

We’ll show how the covalent compound hydrogen selenide is formed.

SeH

HA

stable

octet

We’ll show how the covalent compound hydrogen selenide is formed.

SeH

HThis H feels the same electron

arrangement as Helium

This H feels the same electron

arrangement as Helium

We’ll show how the covalent compound hydrogen selenide is formed.

SeH

HThe Lewis Diagram for hydrogen selenide

We’ll show how the covalent compound hydrogen selenide is formed.

SeH

H

These shared electron pairs can be replaced by lines

We’ll show how the covalent compound hydrogen selenide is formed.

SeH

H

Like this!

We’ll show how the covalent compound hydrogen selenide is formed.

SeH

H

Each one of these lines is called asingle covalent bond

We’ll show how the covalent compound hydrogen selenide is formed.

SeH

HSeH

HThe Lewis Diagram

for hydrogen selenide

In this example, we’ll see how Lewis diagrams can be used to show how the covalent compound of phosphorus and chlorine forms. The compound is called phosphorus trichloride.

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl Cl

Cl

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl Cl

Cl

Lone pair

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl Cl

Cl

Unpaired e –Unpaired e –

Unpaired e–

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl Cl

Cl

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl Cl

ClUnp

aire

d e

–

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl Cl

Cl

Unp

aire

d e

–

Unpaired e–

Unpaired e –

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl Cl

Cl

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl Cl

Cl

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl Cl

Cl

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl Cl

Cl

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl Cl

Cl

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl Cl

Cl

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl Cl

Cl

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl Cl

Cl

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl Cl

Cl

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl Cl

Cl

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl ClCl

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl ClCl

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl ClCl

The formula for this compound is PCl3, and its name is phosphorus

trichloride

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl ClCl

The formula for this compound is PCl3, and its name is phosphorus

trichloride

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl ClCl

The formula for this compound is PCl3, and its name is phosphorus

trichloride

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl ClCl The

phosphorus atom has a stable octet

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl ClCl

The 3 chlorine atoms each

have a stable octet

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl ClCl

There are 3 covalent bonds in which a pair of electrons is shared

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl ClCl

These shared electron pairs can be replaced

by single lines.

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl ClCl

These shared electron pairs can be replaced

by single lines.

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl ClCl

PCl ClCl

Using Lewis diagrams, show how phosphorus trichloride forms from its atoms.

PCl ClCl

PCl ClClLewis Diagram of

Phosphorus Trichloride, PCl3

Lewis Diagrams Showing Double and

Triple Covalent Bonds

Oxygen is a Diatomic ElementIts formula is O2

Oxygen is a Diatomic ElementIts formula is O2

Oxygen is a Diatomic Element. Its formula is O2

Oxygen is a Diatomic Element. Its formula is O2

O

Oxygen is a Diatomic Element. Its formula is O2

OUnpaire

d

e–

Unpaire

d

e–

Oxygen is a Diatomic Element. Its formula is O2

OUnpaire

d

e–

Unpaire

d

e–

OUnpaire

d

e–

Unpaired

e –

Oxygen is a Diatomic Element. Its formula is O2

O OUnpaired electrons

Unpaired electrons

Oxygen is a Diatomic Element. Its formula is O2

O O

Oxygen is a Diatomic Element. Its formula is O2

O O

Oxygen is a Diatomic Element. Its formula is O2

O O

Oxygen is a Diatomic Element. Its formula is O2

O O

Oxygen is a Diatomic Element. Its formula is O2

O O

Oxygen is a Diatomic Element. Its formula is O2

O O

Oxygen is a Diatomic Element. Its formula is O2

O O

Oxygen is a Diatomic Element. Its formula is O2

O O

Oxygen is a Diatomic Element. Its formula is O2

O O

Oxygen is a Diatomic Element. Its formula is O2

O O

Oxygen is a Diatomic Element. Its formula is O2

O O

Oxygen is a Diatomic Element. Its formula is O2

O O

Oxygen is a Diatomic Element. Its formula is O2

O O

Oxygen is a Diatomic Element. Its formula is O2

O O

Oxygen is a Diatomic Element. Its formula is O2

O O2 pairs of

electrons are being shared

Oxygen is a Diatomic Element. Its formula is O2

O OThe Lewis Diagram foran oxygen molecule, O2

Oxygen is a Diatomic Element. Its formula is O2

O OEach shared pair of electrons

is replaced by a line

Oxygen is a Diatomic Element. Its formula is O2

O OEach shared pair of electrons

is replaced by a line

Oxygen is a Diatomic Element. Its formula is O2

O OThis is called a

double covalent bond

Oxygen is a Diatomic Element. Its formula is O2

O OO OThe Lewis Diagram foran oxygen molecule, O2

Nitrogen is a Diatomic Element

Its formula is N2

Nitrogen is a Diatomic Element. Its formula is N2

Nitrogen is a Diatomic Element. Its formula is N2

N N

Nitrogen is a Diatomic Element. Its formula is N2

N Nlonepair

lonepair

Nitrogen is a Diatomic Element. Its formula is N2

N N3 unpairedelectrons

3 unpairedelectrons

Nitrogen is a Diatomic Element. Its formula is N2

N N

Nitrogen is a Diatomic Element. Its formula is N2

N N

Nitrogen is a Diatomic Element. Its formula is N2

N N

Nitrogen is a Diatomic Element. Its formula is N2

N N

Nitrogen is a Diatomic Element. Its formula is N2

N N

Nitrogen is a Diatomic Element. Its formula is N2

N N

Nitrogen is a Diatomic Element. Its formula is N2

N N

Nitrogen is a Diatomic Element. Its formula is N2

N N

Nitrogen is a Diatomic Element. Its formula is N2

N NThe Lewis Diagram for a molecule of

N2

Nitrogen is a Diatomic Element. Its formula is N2

N NHas a stable octet

Nitrogen is a Diatomic Element. Its formula is N2

N NHas a stable octet

Nitrogen is a Diatomic Element. Its formula is N2

N NThese 3 pairs of

electrons are

shared

Nitrogen is a Diatomic Element. Its formula is N2

N NWe have

3 parallel

lines

Nitrogen is a Diatomic Element. Its formula is N2

N NA triple covalent

bond

Nitrogen is a Diatomic Element. Its formula is N2

N NA triple covalent

bond

Nitrogen is a Diatomic Element. Its formula is N2

N NN NThe Lewis Diagram for a molecule of

N2