Classification of Elements & Periodicity

Classification of Elements & Periodicity for JEE — concepts and worked problems.

Syllabus

  1. Classification of Elements & Periodicity

    1. Development of the periodic table; the modern periodic law
    2. Electronic configuration & position in the table
    3. Atomic radius & its periodic variation
    4. Ionic radius; isoelectronic species
    5. Ionisation enthalpy & its trends
    6. Electron gain enthalpy & its trends
    7. Electronegativity (scales & trends)
    8. Valence & oxidation states across the table
    9. Anomalous behaviour of the first element of a group
    10. Periodicity in chemical reactivity