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Alkali metals are good conductors of ele...

Alkali metals are good conductors of electricity. Why?

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Alkali metals have low ionization energy. Hence they show metallic character. They are good conductors of electricity due to the presence of mobile valence electrons.
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Give reasons for the following : (i) Metals are good conductors of electricity whereas non-metals are not. (ii) Ionic compounds have usually high melting and boiling points.

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Knowledge Check

  • Which of the following non metal is good conductor of electricity .

    A
    Graphite
    B
    Phosphorous
    C
    Hydrogen
    D
    Bromine

  • Which one of the following is a good conductor of electricity ?

    A
    Ionic crystal
    B
    Covalent crystal
    C
    Metallic crystal
    D
    Molecular crystal.

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