Classification of Elements and Periodicity in Properties
The modern periodic law, block-wise classification of elements, and periodic trends in atomic size, ionisation enthalpy, electron gain enthalpy and electronegativity, including key exceptions.
13 min readWeightage: 4-6 marks in CBSE boards; frequent NCERT-based questions30-question chapter test included
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Classification of Elements and Periodicity in Properties (Chemistry) is part of the CBSE board syllabus plan. Pick the batch by the year you appear in — Class 11 students join the two-year CBSE 2028 program, Class 12 students and repeaters join the one-year or crash program for CBSE 2027.
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