IGCSE Chemistry 0620/21/O/N/21 Q25


25 Which statement is correct for all metals?

A They conduct electricity when molten.
B They gain electrons when they form ions.
C They have a low density.
D They have a low melting point.

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Answer ( 1 )


    A. They conduct electricity when molten (or aqueous) due to mobile ions.

    B. They lose electrons when they form ions. They form cations.

    C. Metals have a high density because they have many atoms packed very closely into a small space.

    D. Metals have strong metallic bonds. Hence, they have high melting and boiling points.

    Ans: A

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