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The third line of Balmer series of an i...

The third line of Balmer series of an ion equivalent to hydrogen atom has wavelength of `108.5mm`. The ground state energy of an electron of this ion will e

A

3.4 eV

B

13.6 eV

C

54.4 eV

D

122.4 eV

Text Solution

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The correct Answer is:
C
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Knowledge Check

  • The wavelength of the third line of the Balmer series for a hydrogen atom is -

    A
    `(21)/(100R_(H))`
    B
    `(100)/(21 R_(H))`
    C
    `(21R_(H))/(100)`
    D
    `(100R_(H))/(21)`

  • An ionic atom equivalent to hydrogen atom has wavelength equal to 1//4 of the wavelengths of hydrogen lines. The ion will be

    A
    `He^(+)`
    B
    `Li^(++)`
    C
    `Ne^(9+)`
    D
    `Na^(10+)`

  • The third line of the Balmer series spectrum of a hydrogen-like ion of atomic number Z equals to 108.5 nm . The binding energy of the electron in the ground state of these ions is E_(n) . Then

    A
    `Z = 2`
    B
    `E_(B) = 54.4 eV`
    C
    `Z = 3`
    D
    `E_(B) = 122.4 eV`

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