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The Periodic Table
Chemistry (Science Paper 2) · Chapter 9 · 5. The Periodic Table
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Topics 5
- Early classifications: Dobereiner's triads and Newlands' law of octaves
- Mendeleev's periodic law: principle, examples, merits and limitations
- Discovery of atomic number and the modern periodic law
- Modern periodic table: groups 1 to 18 and periods 1 to 7; placement of transition and inner transition elements
- Alkali metals (group 1), alkaline earth metals (group 2), halogens (group 17) and noble gases (group 18)