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Group 16 elements have lower value of fi...

Group 16 elements have lower value of first ionisation enthalpy as compared to group 15 elements because

A

half filled p-orbitals in group 15 elements are more stable

B

group 16 elements have smaller size than group 15 elements

C

group 16 elements contain double bond while group 15 elements have triple bond

D

group 16 elements have more number of electrons in p-orbitals.

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The correct Answer is:
A
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Elements of group 16 generally show lower value of first ionization enthalpy compared to the corresponding elements of group 15. Why ?

(a) Elements of group 16 generally show lower value of first ionisation enthalpy as compared to the corresponding periods of group 15 . Why ? (b) H_2 S is less than acidic than H_2 Te . Why ?

Knowledge Check

  • The least value of the first ionization energy of group 14 elements is shown by:

    A
    Si
    B
    Ge
    C
    Sn
    D
    Pb

  • Which group of elements shows lowest ionisation enthalpy?

    A
    Alkali metals
    B
    Alkaline earth metals
    C
    Halogens
    D
    Noble gases

  • The hydribes of group 15 elements act as :

    A
    lewis acids
    B
    lewis bases
    C
    both
    D
    none

    • Similar Questions

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    Why are the first ionization enthalpies of group 1 elements low?

    ionisation potential decreases down the group in representative elements while transition elements of the 6th period have greater ionisation potential values compared to the elements of the 5th period. Justify.

    The valency of group 16 elements 2 .

    Which elements have low ionisation enthalpy as compare to their neighbour element in first transition series?

    Which of the element is expected to have lowest first ionisation enthalpy

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