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As par Bohr model, the minimum energy (i...

As par Bohr model, the minimum energy (in `eV`) required to remove an electron from the ground state of doubly ionized `Li` atom `(Z = 3)` is

A

40.8

B

13

C

122.4

D

1.51

Text Solution

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The correct Answer is:
C
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The minimum energy required to excite a hydrogen atom from its ground state is ______.

The value of ground state energy of hydrogen atom is - 13.6 eV. (a) Find the energy required to move an electron from the ground state to the first excited state of the atom. (b) Determine (i) the kinetic energy, and (ii) the orbital radius in the first excited state of the atom. (Given the value of Bohr radius = 0.53Å )

Knowledge Check

  • As per Bohr model , the minimum energy (in eV) required to remove electron from the ground state of daubly joinized Li alon (Z = 3) is

    A
    `1.51`
    B
    `13.6`
    C
    `40.8`
    D
    `122.4`

  • As per Bohr model, (I) minimum energy required to remove an electron from ground state of doubly ionized Li atom (Z=3) is 122.4eV . (II) energy of transition n=3 to m=2 is less than that of m=2 to n=1 . (III) minimum energy required to remove an electron from ground state of singly-ionised He atom (z=2) is 27.2eV (IV) A Trasnsition from state n=3 to n=2 in a hydrogen atom result in U-V radiation

    A
    `II,III,IV`
    B
    `I,II`
    C
    `II,III`
    D
    `I,III,IV`

  • The minimum energy required to excite a hydrogen atom from its ground state is .

    A
    13.6 eV
    B
    10.2 eV
    C
    3.4 eV
    D
    1.51eV

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