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The ionisation energy of H atom is 13.6...

The ionisation energy of H atom is `13.6 ` eV. What will be the ionisation energy of `He^(o+)` and `Li^(2+)` ions ?

A

54.4 ev. 122.4 ev

B

5.44 ev. 12.24 ev

C

6.82 ev, 13.6 ev

D

13.4 ev, 122.4 ev

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The correct Answer is:
A
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Knowledge Check

  • The ionisation energy of hydrogen atom is 13.6eV. What is the ionisation energy of He ?

    A
    `-27.2 eV`
    B
    `+27.2 eV`
    C
    `+54.4 eV`
    D
    `-54.4 eV`

  • The ionisation energy of H is 13.6 eV . Calculate the ionization energy of Li^(2+) ions.

    A
    `54.4 eV`
    B
    `122.4eV`
    C
    `244.8eV`
    D
    `108.8eV`

  • The ionisation energy of H atom is 13.6 eV The inoisation energy of Li^(2+) law will be

    A
    54.4 eV
    B
    122.4 eV
    C
    13.6 eV
    D
    27.2 eV

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    (a) The electronic in Bohr's orbit is negative. How will you account for it ? (b) The ionisation energy of hydrogen atom is 13.6 eV. What will be the energy of the first orbit of He^(+) and Li^(2+) ions are ?

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