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Alkali metals are paramagnetic but their...

Alkali metals are paramagnetic but their salts are dimagnetic. Explain.

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Alkali metals contain one unpaired electron `(ns^(1))` and hence are paramagnetic . However , during salt formation , this unpaired electron is transferred to the non-metallic atom forming its anion . As a result , salt has paired electrons both in the cation as well as in the anion and hence alkali metal salts are diamagnetic in nature .
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Knowledge Check

  • Alkali metals salts are

    A
    Diamagnetic and coloured
    B
    Diamagnetic and colourless
    C
    Paramagnetic and coloured
    D
    Paramagnetic and colourless

  • Alkali metals are characterised by

    A
    Good conductor of heat and electricity
    B
    High oxidation potential
    C
    High melting point
    D
    Solubility in liquid ammonia.

  • Alkali metals are in a group-

    A
    IIA
    B
    VIIA
    C
    IA
    D
    III A