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Applied Mathematics — Second Secondary General Mathematics — Second Secondary Physics — Second Secondary Pure Mathematics — Second Secondary

Lesson 3

Chapter 3 — The Periodic Table and Classification of Elements

Lesson parts

3.1 1.1 The basis of arrangement1.1 The basis of arrangement3.1

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3.2 1.2 Description of the table1.2 Description of the table3.2

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3.3 1.3 The four blocks of the periodic table1.3 The four blocks of the periodic table3.3

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3.4 1.4 Types of elements1.4 Types of elements3.4

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3.5 1.5 Using the configuration to find position1.5 Using the configuration to find position3.5

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3.6 Lesson 2: Atomic radiusLesson 2: Atomic radius3.6

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3.7 2.1 Definition2.1 Definition3.7

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3.8 2.2 Variation across a period (left to right)2.2 Variation across a period (left to right)3.8

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3.9 2.3 Variation down a group2.3 Variation down a group3.9

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3.10 2.4 Ionic radius compared with atomic radius2.4 Ionic radius compared with atomic radius3.10

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3.11 3.1 Ionization energy (ionization potential)3.1 Ionization energy (ionization potential)3.11

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3.12 3.2 Electron affinity3.2 Electron affinity3.12

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3.13 3.3 Electronegativity3.3 Electronegativity3.13

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3.14 3.4 Electron affinity versus electronegativity3.4 Electron affinity versus electronegativity3.14

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3.15 3.5 Summary of the trends (representative elements)3.5 Summary of the trends (representative elements)3.15

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3.16 4.1 Metals and non-metals4.1 Metals and non-metals3.16

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3.17 4.2 Trends of metallic character4.2 Trends of metallic character3.17

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3.18 4.3 Oxides: acidic, basic, amphoteric and neutral4.3 Oxides: acidic, basic, amphoteric and neutral3.18

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3.19 4.4 Acidic and basic character in the periodic table4.4 Acidic and basic character in the periodic table3.19

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3.20 5.1 Concept5.1 Concept3.20

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3.21 5.2 Ionic compounds5.2 Ionic compounds3.21

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3.22 5.3 Covalent compounds5.3 Covalent compounds3.22

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3.23 5.4 Rules5.4 Rules3.23

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3.24 6.1 Definitions6.1 Definitions3.24

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3.25 6.2 Behaviour of an agent according to its oxidation number6.2 Behaviour of an agent according to its oxidation number3.25

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3.26 6.3 Identifying redox reactions by oxidation numbers6.3 Identifying redox reactions by oxidation numbers3.26

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3.27 6.4 Ionic equations, spectator ions and half-reactions6.4 Ionic equations, spectator ions and half-reactions3.27

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3.28 6.5 Balancing ionic redox equations (half-reaction method)6.5 Balancing ionic redox equations (half-reaction method)3.28

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3.29 6.6 Special types of redox reactions6.6 Special types of redox reactions3.29

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3.30 6.7 Final summary6.7 Final summary3.30

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