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

Lesson 2

Chapter 2 — Atomic Structure

Lesson parts

2.1 Lesson 1: Early atomic models — Thomson and RutherfordLesson 1: Early atomic models — Thomson and Rutherford2.1

2.2 1.1 Thomson's atomic model (1897)1.1 Thomson's atomic model (1897)2.2

2.3 1.2 Rutherford's gold foil experiment1.2 Rutherford's gold foil experiment2.3

2.4 1.3 Postulates of Rutherford's atomic model (1911)1.3 Postulates of Rutherford's atomic model (1911)2.4

2.5 2.1 Atomic emission (line) spectrum2.1 Atomic emission (line) spectrum2.5

2.6 2.2 Bohr's atomic model (1913)2.2 Bohr's atomic model (1913)2.6

2.7 2.3 The hydrogen spectrum explained2.3 The hydrogen spectrum explained2.7

2.8 2.4 Success of Bohr's model2.4 Success of Bohr's model2.8

2.9 2.5 Shortcomings of Bohr's model2.5 Shortcomings of Bohr's model2.9

2.10 Lesson 3: The modern atomic theoryLesson 3: The modern atomic theory2.10

2.11 Lesson 4: Quantum numbersLesson 4: Quantum numbers2.11

2.12 4.1 Principal quantum number (n)4.1 Principal quantum number (n)2.12

2.13 4.2 Subsidiary quantum number (ℓ)4.2 Subsidiary quantum number (ℓ)2.13

2.14 4.3 Magnetic quantum number (mℓ)4.3 Magnetic quantum number (mℓ)2.14

2.15 4.4 Spin quantum number (ms)4.4 Spin quantum number (ms)2.15

2.16 4.5 Relations between n, sublevels, orbitals and electrons4.5 Relations between n, sublevels, orbitals and electrons2.16

2.17 4.6 Worked examples4.6 Worked examples2.17

2.18 Lesson 5: Distribution of electrons in the atomLesson 5: Distribution of electrons in the atom2.18