Classification of Elements and Periodicity
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
Check Your Chapter PreparationAdmissions open
Want this taught live? ICSE / IGCSE 2027 & 2028 batches
Classification of Elements and Periodicity (Chemistry) is part of the ICSE & IGCSE syllabus plan. Pick the batch by the year you appear in — Class 11 students join the two-year ICSE / IGCSE 2028 program, Class 12 students and repeaters join the one-year or crash program for ICSE / IGCSE 2027.
- ICSE / IGCSE 2027 online coaching — 1 year Class 12 batchFull syllabus, revision and test series for the ICSE & IGCSE 2027 attempt in batches of 20 — every formula here is drilled through daily practice.
- ICSE / IGCSE 2028 two year course for Class 9-10 studentsStart early: a two-year ICSE & IGCSE 2028 program that builds concepts alongside school, with board-level support.
- 1-on-1 ICSE / IGCSE 2027 & 2028 tutoring at $15 per hourPersonal mentor, flexible timings and a plan built around the chapters you keep losing marks in.
Finished this chapter? Test yourself now.
30 questions graded from basic to exam level, with a question-wise result and a personalised improvement plan.
Start Chapter Test