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11 July, 08:35

1) Rank the elements, aluminum, sodium and phosphorus, in order of decreasing conductivity.

2) Rank the elements aluminum, gallium, and boron in order of decreasing conductivity

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  1. 11 July, 08:43
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    Conductivity is the ability of a substance to allow charge or electricity to pass through it. Metals have a lot of free electrons and are considered as good conductors while non-metals do not conduct electricity

    1) In the given examples:

    Al is a metal, Na is an alkali metal while P is a non-metal

    The decreasing order of conductivity would be:

    Al > Na > P

    2)

    Both Al and Ga are metals while B is metalloid.

    Among Al and Ga, Al is a solid at room temperature and a better conductor of electricity. hence the decreasing order would be:

    Al > Ga > B
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