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The first ionisation potentials (eV) of ...

The first ionisation potentials (eV) of `Be` and `B` respectively are

A

8.29eV, 9.32eV

B

9.32eV, 9.32eV

C

8.29eV, 8.29eV

D

9.32eV, 8.29eV

Text Solution

Verified by Experts

The correct Answer is:
D
First I.P of `Be gtB` because of stable `ns^(2)` configuration.
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Knowledge Check

  • The first ionisation potential (eV) of Be and B respectively are

    A
    8.29 eV, 9.32 eV
    B
    9.32 eV, 9.32 eV
    C
    8.29 eV, 8.29 eV
    D
    9.32 eV, 8.29 eV

  • The first ionization potential (eV) of Be and B respectively are

    A
    `8.29, 9. 32`
    B
    `9.32, 8.29 `
    C
    `9. 32, 9.32`
    D
    `8. 29 ,8 . 29`

  • The first ionization potential (eV) of N and P respectively are

    A
    `8.29, 8.29`
    B
    `11.32 , 11.32`
    C
    `8.29 , 11.32`
    D
    `11.32, 8.21`

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    The ionisation potentials of Li and K are 5.4 and 4.3 eV respectively. The ionization potential of Na will be:

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