Page 4 - Chemistry_Form_2

Chemistry
for Secondary Schools

Table of contents

Acknowledgements ........................................................................................ v
Preface ............................................................................................................ vi

Chapter One: Atomic structure .................................................................... 1
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Concept of atomic structure ................................................................................1
Dalton atomic theory ...........................................................................................2
Sub-atomic particles .............................................................................................3
Electronic arrangement ........................................................................................6
Determination of atomic number and mass number ..........................................10
Atomic number ..................................................................................................10
Mass number ......................................................................................................10
Revision exercise 1 ..........................................................................................21

Chapter Two: Periodic classification .......................................................... 24
Development of the periodic table .....................................................................24
Modern periodic table ........................................................................................25
Electronic configuration and element positioning in the periodic table ............27
Trends in physical and chemical properties across periods and down groups ...30
Trends in physical properties across periods .....................................................31
Trends in chemical properties across periods ....................................................33
Trends in physical properties down a group ......................................................33
Trends in chemical properties down a group .....................................................34
Trends in selected groups ...................................................................................34
Revision exercise 2 ..........................................................................................41

Chapter Three: Chemical bonding, formula and nomenclature ............. 45
Concept of chemical bonding ............................................................................45
Chemical bonding ..............................................................................................46
Formation of ions ...............................................................................................47
Electrovalent bonding ........................................................................................48
Covalent bonding ...............................................................................................51
Valency ...............................................................................................................55
Radicals .............................................................................................................55
Oxidation state ...................................................................................................57
Concept of chemical formulas ...........................................................................59
Types of chemical formulas ...............................................................................62
Formula calculations ..........................................................................................62
Nomenclature of binary inorganic compounds ..................................................66
Binary inorganic compounds .............................................................................66
Revision exercise 3 ..........................................................................................72

Student’s Book Form Two iii

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