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Among Be, B and C, which element has the...

Among Be, B and C, which element has the highest first ionisation enthalpy and why ?

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Carbon has the highest first ionisation enthalpy because it has greater nuclear charge and the smallest size.
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Knowledge Check

  • Which of the following metals have high first ionisation enthalpy:

    A
    `Ti`
    B
    `Zn`
    C
    `Sc`
    D
    `Cr`

  • Which has the highest free zing point ?

    A
    1 M glucose
    B
    1M NaCl
    C
    1M `CaCl_2`
    D
    1M `AlF_3`

  • Which of the following has highest ionisation enthalpy? P , N , As , Sb .

    A
    P
    B
    N
    C
    As
    D
    Sb

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    Why do the transition elements have higher enthalpies of atomisation? In 3d series (Sc to Zn), which element has the lowest enthalpy of atomisation and why?

    Why noble gases have very high values of ionisation enthalpies ?

    Which has the highest oxidizing power?

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