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Ns2 np3 valence shell group 5a9/8/2023 ![]() ![]() ![]() Representative elements: Groups 1A – 8A (Groups 1, 2 & 13-18) The s and p blocks (orbital s and p are filled) Transition elements: Groups 3B – 2B (Groups 3 – 12) The d block (orbitals d are filled) Presentation on theme: "The Representative Elements Chapter 20 Lesson 1"- Presentation transcript:ġ The Representative Elements Chapter 20 Lesson 1Ģ The representative Elements: Groups 1A – 4AĢ0.1 A Survey of the Representative Elements The Group 1A Elements The Chemistry of Hydrogen 20.4 The Group 2A Elements 20.5 The Group 3A Elements The Group 4A Elementsģ The representative Elements: Groups 5A – 8AĢ0.7 The Group 5A Elements The Chemistry of Nitrogen 20.9 The Chemistry of Phosphorus 20.10 The Group 6A Elements 20.11 The Chemistry of Oxygen 20.12 The Chemistry of Sulfur 20.13 The Group 7A Elements 20.14 The Group 8A Elements
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