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The element having greatest difference b...

The element having greatest difference between its first and second ionization energies, is:

A

`Ca`

B

`Sc`

C

`Ba`

D

`K`

Text Solution

Verified by Experts

The correct Answer is:
D
Alkali metals have high difference in the first and second ionisation energy as they achieve stable noble gas configuration after first ionisation.
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Knowledge Check

  • The electronic configuration of an element with the largest difference between the 1^(st) and 2^(nd) ionization energies is

    A
    `1s^(2)2s^(2)2p^(6)`
    B
    `1s^(2)2s^(2)2p^(6)3s^(1)`
    C
    `1s^(2)2s^(2)2p^(6)3s^(2)`
    D
    `1s^(2)2s^(2)2p^(1)`

  • First ionization energy is highest for :

    A
    Lead
    B
    Carbon
    C
    Silicon
    D
    Tin

  • The ratio of the difference between the first and second Bohr orbit energies to that between second and third Bohr orbit energies is :-

    A
    `1/2`
    B
    `1/3`
    C
    `(27)/(5)`
    D
    `(5)/(27)`
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