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Chapter 2 of 11
Syllabus

Chemical Bonding

ICSE · Class 10 · Chemistry

Complete topic list for Chemical Bonding in ICSE Class 10 Chemistry. Key concepts, sub-topics, and what to focus on for board exams.

45 questions22 flashcards5 concepts

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An infographic explaining the Octet Rule (atoms tend to achieve 8 valence electrons) and Duplet Rule (atoms like H, Li tend to achieve 2 valence electrons, like Helium), with simple examples of atoms
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4 Topics · ICSE Class 10 Chemistry

Topics in Chemical Bonding

1

Cause of Chemical Combination and Kossel-Lewis Approach

  • Atoms combine to achieve stability by acquiring noble gas electronic configuration
  • Noble gases are stable because they have complete valence shells (8 electrons except He which has 2)
  • Atoms gain, lose, or share electrons to achieve stable electronic configuration
2

Electrovalent (Ionic) Bonding

  • Formed by complete transfer of electrons from metal to non-metal
  • Large electronegativity difference required between combining atoms
  • Metal atoms lose electrons to form cations (positive ions)
3

Properties of Ionic Compounds

  • Physical state: Crystalline solids at room temperature
  • High melting and boiling points due to strong electrostatic forces
  • Hard and brittle nature
4

Covalent Bonding

  • Formed by mutual sharing of electrons between atoms
  • Equal or similar electronegativity of combining atoms
  • Both atoms contribute equal electrons for sharing

Key Concepts

Atoms combine due to two mainDuring bond formationBond formed by complete transferBond formed by mutual sharingSpecial covalent bond where both electrons

Frequently Asked Questions

What are the important topics in Chemical Bonding for ICSE Class 10 Chemistry?
Chemical Bonding covers several key topics that are frequently asked in ICSE Class 10 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Chemical Bonding — ICSE Class 10 Chemistry?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision 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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