Metallic bonding questions

1. Explain why graphite, an allotrope of the non-metal carbon, is a good conductor of electricity whereas diamond which is also an allotrope of carbon is a very poor conductor of electricity.2. (a) Define the term malleable.(b) Explain why gold conducts electricity and is a malleable metal.3. Explain why the melting points of the alkali metals decrease as the atomic number of the metal increases.

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