Chapter 2 of 13
Revision Notes
Metals and Non-metals — Revision Notes
Karnataka Board · Class 10 · Science
Metals and Non-metals revision notes for Karnataka Board Class 10 Science: 4 topics in quick points. Part of the Karnataka Board Class 10 Science syllabus.
43 questions20 flashcards5 concepts
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Key Topics to Revise
1
Physical Properties of Metals and Non-metals
- Metallic lustre: Metals have shiny surfaces when freshly cut or polished (e.g., gold, silver, copper)
- Malleability: Metals can be beaten into thin sheets. Gold and silver are most malleable - gold leaf used in decorations
- Ductility: Metals can be drawn into thin wires. Gold is most ductile - 2 km wire from 1g gold
2
Chemical Properties of Metals
- Reaction with Oxygen: Almost all metals form metal oxides (basic in nature)
- Reactivity with oxygen varies: K, Na catch fire; Mg burns with white flame; Cu forms black coating
- Amphoteric oxides: Al₂O₃, ZnO react with both acids and bases
3
Reactivity Series and Applications
- Activity Series: K > Na > Ca > Mg > Al > Zn > Fe > Pb > [H] > Cu > Hg > Ag > Au
- Most reactive: Potassium (stored in kerosene oil to prevent reaction with air/water)
- Moderately reactive: Iron, Zinc, Lead (found as oxides, sulfides, carbonates)
4
Ionic Compounds Formation and Properties
- Formation: Transfer of electrons from metal atoms to non-metal atoms
- Metal loses electrons → Cation (positive ion); Non-metal gains electrons → Anion (negative ion)
- Electrostatic attraction holds oppositely charged ions together
Get complete notes with diagrams and examples
Full NotesKey Concepts
Metals exhibit metallic lustre (shining surface)NonMetals react with oxygen to formA list of metals arrangedMetals lose electrons to form positive
Frequently Asked Questions
What are the important topics in Metals and Non-metals for Karnataka Board Class 10 Science?
Key topics in Metals and Non-metals include Physical Properties of Metals and Non-metals, Chemical Properties of Metals, Reactivity Series and Applications, Ionic Compounds Formation and Properties. Study these first, then practise questions on each for the Karnataka Board Class 10 board exam.
How should I revise Metals and Non-metals for the Karnataka Board Class 10 board exam?
Learn the core ideas first, then work through the 43 practice questions on Metals and Non-metals. Revise definitions regularly and use flashcards for quick recall before the exam.
Sources & Official References
- Karnataka SSLC — kseeb.kar.nic.in
- Dept of Pre-University Education, Karnataka
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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