'Lightweight metal' diaporamas de présentation

Chapter 3

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USES OF METALS

USES OF METALS. Metals all have similar properties eg have high melting points They are all solid at room temperature except for mercury!. Most metals are dull on the surface, but shiny when cut or polished. The metal surface reacts with oxygen to make a dull coat.

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Metals are made up of metallic bonds.

What are metals made up of?. Metals are made up of metallic bonds. In a metallic bond, the cations form a lattice that is held in place by the strong metallic bonds between the cations and the surrounding valence electrons. Metal atoms achieve stable configuration by losing electrons. .

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Mining & Mineral Resources

Chapter 16, Section 1: Minerals & Mineral Resources Standards: SEV4a, c, e. Mining & Mineral Resources. What is a Mineral?. Minerals are Naturally occurring Usually inorganic solids Have characteristic chemical compositions Orderly internal structures Specific set of physical properties.

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