These comprehensive RBSE Class 8 Science Notes Chapter 4 Materials: Metals and Non-Metals will give a brief overview of all the concepts.
Rajasthan Board RBSE Solutions for Class 8 Science in Hindi Medium & English Medium are part of RBSE Solutions for Class 8. Students can also read RBSE Class 8 Science Important Questions for exam preparation. Students can also go through RBSE Class 8 Science Notes to understand and remember the concepts easily. Browsing through class 8 science chapter 14 extra questions that includes all questions presented in the textbook.
→ Metals are malleable and lustrous where as non-metals are not malleable and lustrous.
→ Metals are ductile and sonorous and good conductor of heat and electricity whereas these properties are not shown by non-metals.
→ Metal oxides are basic whereas non-metal oxides are acidic in nature.
→ Some metals produce metal hydroxide and hydrogen gas by reacting with water where as non-metals do not react with water.
→ Metals gives metal salt and hydrogen gas by reacting with acids whereas non-metals do not react with acids.
→ Some metals react with bases and produce hydrogen gas but the reactions of non-metals with bases are complex.
→ More reactive metals displace the less reactive metals from their compounds in aqueous solutions.