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    Electron Questions

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    1. Explain how the degree of filling of an electron level in an isolated atom of molecule affects whether the resulting solid is an insulator, semi-conductor or metal.

    2. Hence or otherwise compare the expected electrical conductivity of solid hydrogen with solid helium.

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    Answer 1

    The best way to explain this question is on the basis of BAND THEORY OF METALLIC BONDING. There is enough delocalization of electron density between the various energy levels in case of metals. The lowest band is called the VALENCE BAND while the higher energy level is called the CONDUCTION BAND. If ...

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