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Chapter 3ChemistryCBSE Class 11

Classification of Elements and Periodicity in Properties

Classification of Elements and Periodicity in Properties is Chapter 3 of NCERT Class 11 Chemistry. The chapter covers Why do we Need to Classify Elements?, Genesis of Periodic Classification, Modern Periodic Law and the Present Form of the Periodic Table, Nomenclature of Elements with Atomic Numbers > 100, and more. Use this public guide to revise the official topic structure before asking Lerno for step-by-step help.

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Topics covered

7 sections
01

Why do we Need to Classify Elements?

Introduction
02

Genesis of Periodic Classification

Introduction
03

Modern Periodic Law and the Present Form of the Periodic Table

Introduction
04

Nomenclature of Elements with Atomic Numbers > 100

Introduction
05

Electronic Configurations of Elements and the Periodic Table

Introduction
06

Electronic Configurations and Types of Elements: s-, p-, d-, f- Blocks

IntroductionThe s-Block ElementsThe p-Block ElementsThe d-Block Elements (Transition Elements)The f-Block ElementsMetals, Non-metals and Metalloids
07

Periodic Trends in Properties of Elements

IntroductionTrends in Physical PropertiesPeriodic Trends in Chemical PropertiesPeriodic Trends and Chemical Reactivity

Key concepts

Why do we Need to Classify Elements?Genesis of Periodic ClassificationModern Periodic Law and the Present Form of the Periodic TableNomenclature of Elements with Atomic Numbers > 100Electronic Configurations of Elements and the Periodic TableElectronic Configurations and Types of Elements: s-, p-, d-, f- BlocksPeriodic Trends in Properties of ElementsIntroductionThe s-Block ElementsThe p-Block Elements

Practice questions

Frequently asked

What is covered in Classification of Elements and Periodicity in Properties?

Classification of Elements and Periodicity in Properties is Chapter 3 in NCERT Class 11 Chemistry. The verified chapter structure includes Why do we Need to Classify Elements?, Genesis of Periodic Classification, Modern Periodic Law and the Present Form of the Periodic Table, Nomenclature of Elements with Atomic Numbers > 100, Electronic Configurations of Elements and the Periodic Table.

How should I revise Classification of Elements and Periodicity in Properties?

Revise the chapter topic by topic: start with Why do we Need to Classify Elements?, Genesis of Periodic Classification, Modern Periodic Law and the Present Form of the Periodic Table, then practice questions that mix definitions, examples, and application steps.

Can I use Lerno for Class 11 Chemistry questions?

Yes. Lerno is built for CBSE students and uses NCERT-grounded context so students can ask for explanations, practice prompts, and step-by-step guidance for this chapter.

Study prompts

1

Explain Why do we Need to Classify Elements? from Classification of Elements and Periodicity in Properties and give one NCERT-style example or practice step.

2

Explain Genesis of Periodic Classification from Classification of Elements and Periodicity in Properties and give one NCERT-style example or practice step.

3

Explain Modern Periodic Law and the Present Form of the Periodic Table from Classification of Elements and Periodicity in Properties and give one NCERT-style example or practice step.

4

Explain Nomenclature of Elements with Atomic Numbers > 100 from Classification of Elements and Periodicity in Properties and give one NCERT-style example or practice step.

5

Explain Electronic Configurations of Elements and the Periodic Table from Classification of Elements and Periodicity in Properties and give one NCERT-style example or practice step.

6

Explain Electronic Configurations and Types of Elements: s-, p-, d-, f- Blocks from Classification of Elements and Periodicity in Properties and give one NCERT-style example or practice step.

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Practice QuestionsChapter-wise NCERT-aligned questionsSolutions GuideStep-by-step approach per topicChapter ExplanationTopic map for structured revision

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