Chapter Overview
This chapter discusses the classification of materials into metals and non-metals. It covers the physical and chemical properties, extraction methods, and applications of both groups. The chapter highlights how metals are generally malleable, ductile, and good conductors of heat and electricity, while non-metals exhibit opposite properties and are often insulators. Understanding these differences is crucial for their use in technology, construction, and daily life.
Important Keywords
- Metals: Elements that are typically shiny, malleable, ductile, and conduct heat and electricity.
- Non-Metals: Elements that are generally poor conductors, brittle in solid form, and vary in appearance.
- Malleability: Ability of metals to be hammered into thin sheets.
- Ductility: Ability of metals to be drawn into wires.
- Conductivity: The ability to conduct heat or electricity.
- Reactivity: The tendency of a substance to engage in chemical reactions.
- Alloy: A mixture of two or more elements, usually metals.
- Extraction: The process of obtaining metals from their ores.