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The total energy of eletcron in the grou...

The total energy of eletcron in the ground state of hydrogen atom is `-13.6 eV`. The kinetic enegry of an electron in the first excited state is

A

1.7eV

B

3.4eV

C

6.8eV

D

13.6eV

Text Solution

Verified by Experts

The correct Answer is:
B
`K.E = |T.E|=3.4`
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The energy of the electron in the ground state of hydrogen atom is -13.6 eV . Find the kinetic energy and potential energy of electron in this state.

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Knowledge Check

  • The total energy of an electron in the ground state of hydrogen atom is - 13.6 eV . The potiential energy of an electron in the ground state of Li ^(2+) ion will be

    A
    `122.4 eV`
    B
    `- 122.4 eV`
    C
    `244.8 eV`
    D
    `-244.8 eV`

  • Total energy of electron in an excited state of hydrogen atom is -3.4 eV . The kinetic and potential energy of electron in this state.

    A
    `K=-3.4 eV, U=-6.8 eV`
    B
    `K = 3.4 eV, U=-6.8 eV`
    C
    `K=-6.8 eV, U=+3.4 eV`
    D
    `K=+10.2 eV, U=-13.6 eV`

  • The total energy of the electron in the first excited state of hydrogen is -3.4 eV . What is the kinetic energy of the electron in this state?

    A
    `+1.7 eV`
    B
    `+3.4 eV`
    C
    `+6.8 eV`
    D
    `-13.4 eV`

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