Intermolecular forcesIntroduction

ObjectivesBy the end of this lesson, I

should be able to:compare simply between ionic and

covalent bonding.locate metals and nonmetals on

the periodic table.define intramolecular forces as

ionic and covalent bonds.define intermolecular forces.

Key vocabularychemical bonding الكيميائية الرابطة

lattice

شبكية intermolecular forces الناشئة القوة

الجزيئات بين

intramolecular forces الترابط قويالجزيء داخل الذرات بين

How are atoms joined together in compounds?

Chemical bonding “Intramolecular forces”

Ionic bonding

Covalent bonding

CO2

NaCl table salt

CaO

H2O

KI MgO

HCl

Ionic

Ionic

Ionic

IonicCovalent

Covalent

Covalent

How are atoms joined together in compounds?

Chemical bondingWhat are the types of chemical bonding? “Intramolecular forces”Ionic bonding

Covalent bondingBetween metal

and non metal atoms

Between non metal atoms

Molecular

Giant LatticeExample NaCl

Example CO2

Solids Liquids and Gases

What holds molecules together?

Intermolecular forcesWhen one molecule approaches another there is a multitude of forces between the particles in the two molecules’ attraction between different charges and repulsion between similar charges.

What holds molecules together?

Intermolecular forcesIt is the force of attraction between two molecules.

Chemical bondingIntramolecular forcesIt is the bond formed between atoms inside a molecule.

H.W1- Name 3 metals and 3

nonmetals.2- Mansion 2 differences between

ionic and covalent bonding.3- Locate sodium “Na” and sulphur

“S” on the periodic table. # of group and period

4- Give an example of a covalent compound and an ionic compound.

5-What is the difference between chemical bonding and intermolecular forces?

Home work Advanced chemistry for you

book, Page 55 Questions 1 “copy and complete”

Page 73 Questions 1 the first two paragraphs” copy and complete” in students’ copy book.

Dead line Sunday October 18th 2009

Carbon dioxide moleculesCO2

Periodic table of elements

Intermolecular forces