Curriculum
Chemistry — Second Secondary
Chemistry — Second Secondary
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3.11.1 The basis of arrangement3.21.2 Description of the table3.31.3 The four blocks of the periodic table3.41.4 Types of elements3.51.5 Using the configuration to find position3.6Lesson 2: Atomic radius3.72.1 Definition3.82.2 Variation across a period (left to right)3.92.3 Variation down a group3.102.4 Ionic radius compared with atomic radius3.113.1 Ionization energy (ionization potential)3.123.2 Electron affinity3.133.3 Electronegativity3.143.4 Electron affinity versus electronegativity3.153.5 Summary of the trends (representative elements)3.164.1 Metals and non-metals3.174.2 Trends of metallic character3.184.3 Oxides: acidic, basic, amphoteric and neutral3.194.4 Acidic and basic character in the periodic table3.205.1 Concept3.215.2 Ionic compounds3.225.3 Covalent compounds3.235.4 Rules3.246.1 Definitions3.256.2 Behaviour of an agent according to its oxidation number3.266.3 Identifying redox reactions by oxidation numbers3.276.4 Ionic equations, spectator ions and half-reactions3.286.5 Balancing ionic redox equations (half-reaction method)3.296.6 Special types of redox reactions3.306.7 Final summary
Chemistry — Second Secondary 2026/2027
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