Class 11 Chemistry - Periodic table To get full access, visit: http://www.avanti.in/gurukul Topic 1: Early Classification of elements and Modern Periodic Table In this topic, we are going to cover: 1. The necessity of grouping together of elements 2. Mendeleev and Moseley’s contribution in the formation of the modern periodic table 3. Periods and groups in a periodic table 4. The general electronic configurations and properties of groups 5. Metallic and covalent radii 6. Comparing sizes of anions and cations Avanti Gurukul- Learn more about us at http://www.avanti.in Like us on Facebook @ https://www.facebook.com/avantilearningcentres/?fref=ts Follow us on Twitter @ https://twitter.com/AvantiLC