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Class 10 Chemistry: Periodic Classification Formulas (PDF) — All Important Formulas Free

Free class 10 chemistry: periodic classification formulas — all 4 key formulas on one page, downloadable as PDF for fast revision before CBSE board exams. No signup.

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TL;DR: Free class 10 chemistry: periodic classification formulas — all 4 key formulas on one page, downloadable as PDF for fast revision before CBSE board ex…

Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated Jun 25, 2026

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All Periodic Classification formulas for Class 10 Chemistry (CBSE / NCERT) on one page — fast revision for board exams. 100% free, no login, download as PDF.

Periodic Classification — Key Formulas

FormulaExpression
Modern periodic lawProperties of elements are a periodic function of their ATOMIC NUMBER.
Structure18 vertical groups · 7 horizontal periods
Across a period (→)Atomic size decreases · metallic character decreases · non-metallic character increases
Down a group (↓)Atomic size increases · metallic character increases

FAQs

What are the most important Periodic Classification formulas for Class 10?

This sheet lists all 4 key Periodic Classification formulas from the Class 10 Chemistry CBSE/NCERT syllabus, ready for quick revision.

Is this Periodic Classification formula sheet free to download?

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