Periodic Table and Periodicity in Properties

This topic covers concepts such as Early Attempts at Classification of Elements, Dobereiner's Triads, Newlands' Law of Octaves, Limitations of Newlands' Law of Octaves, Basis of Dobereiner's Triad, Limitations of Dobereiner's Triads, etc.

This topic covers concepts such as Mendeleev's Periodic Law, Mendeleev's Periodic Table, Basis of Mendeleev's Periodic Table, Groups in Mendeleev's Periodic table, Periods in Mendeleev's Periodic Table, and Achievements of Mendeleev's Periodic Table.

This topic covers the concept of Lothar-Meyer's Atomic Volume Curve.

This topic covers concepts such as Modern Periodic Law, Periods in Modern Periodic Table, The Modern Periodic Table, Basis of Modern Periodic Table, Short Periods, and Long Periods.

This topic covers concepts such as Inert Gases, Representative Elements, Transition Elements, and Inner-Transition Elements.

This topic covers concepts such as Position of Lanthanides and Actinides, Demerits of Modern Periodic Table, and Advantages of Modern Periodic Table.

This topic covers concepts such as Periodic Properties, Atomic Radius, Covalent Radius, Ionisation Enthalpy, Factors Affecting Ionisation Energy, Variation of Ionisation Energy in Periodic Table, Electron Gain Enthalpy, etc.

This topic covers the concept of Position of Hydrogen.