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Periodic Properties and Variations of Properties - Physical and Chemical

ICSE · Class 10 · Chemistry

Quick revision notes for Periodic Properties and Variations of Properties - Physical and Chemical — ICSE Class 10 Chemistry. Key concepts, formulas, and definitions for last-minute revision.

45 questions20 flashcards5 concepts

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A comprehensive labeled diagram of the modern long-form periodic table, clearly showing the s, p, d, and f blocks, numbered periods (1-7), and numbered groups (1-18).
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Key Topics to Revise

1

Modern Periodic Table - Foundation

  • Modern Periodic Law: Physical and chemical properties of elements are periodic functions of their atomic numbers (given by Moseley)
  • Elements are arranged in increasing order of atomic numbers, not atomic weights
  • 18 groups (vertical columns) and 7 periods (horizontal rows)
2

Classification of Elements

  • s-block elements: Groups 1 and 2 (alkali metals and alkaline earth metals)
  • p-block elements: Groups 13-18 (including noble gases)
  • d-block elements: Groups 3-12 (transition metals)
3

Atomic Size (Atomic Radius)

  • Distance from nucleus center to outermost electron shell
  • Down a group: Atomic size INCREASES (more shells added)
  • Across a period: Atomic size DECREASES (nuclear charge increases, same number of shells)
4

Ionisation Energy

  • Energy required to remove most loosely bound electron from gaseous atom
  • Down a group: Ionisation energy DECREASES (atomic size increases)
  • Across a period: Ionisation energy INCREASES (nuclear charge increases)

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Full Notes

Key Concepts

Proposed by MoseleyThe periodic repetition of elements havingThe distance from the centerThe minimum energy required to removeThe energy released when an electron

Frequently Asked Questions

What are the important topics in Periodic Properties and Variations of Properties - Physical and Chemical for ICSE Class 10 Chemistry?
Key topics in Periodic Properties and Variations of Properties - Physical and Chemical include Periodic Properties — Complete Overview Mind Map, Overview of Periodic Properties, Complete Concept Map: Periodic Properties of Elements. These are the concepts ICSE Class 10 examiners draw on most — study them first, then practise related questions.
How to score full marks in Periodic Properties and Variations of Properties - Physical and Chemical — ICSE Class 10 Chemistry?
Understand the core concepts first, then work through the 45 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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