Chapter 5: Periodic Classification of Elements

Topic 1 : Early attempts at the classification of elements: Dobereiner’s  triads

Topic 2: Newland’s law of octaves

Topic 3: Mendeleev’s periodic table

Topic 4: Limitations of Mendeleev’s classification

Topic 5: The Modern periodic table

Topic 6: Position of elements in the modern periodic table

Topic 7: Trends in the modern periodic table

Topic 8:  Metallic and non metallic properties

Multiple choice questions

Question and answers

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