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A : Uncertainty principle demands that a...

A : Uncertainty principle demands that an electron confined to a nucleus must have very high energy so that the electron cannot reside in a nucleus.
R: The electrostatic attraction between electron and proton is large at such a small distance but is not enough to bind such a high -energy electron.

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Knowledge Check

  • The electrostatic potential energy between proton and electron separated by a distance 1 Å is

    A
    13.6 eV
    B
    27.2 eV
    C
    `-14.4 eV`
    D
    1.44 eV

  • The element having very high ionization energy but zero electron affinity is

    A
    H
    B
    F
    C
    He
    D
    B

  • When the atomic electron is at infinite distance from the nucleus, its energy is

    A
    infinity
    B
    zero
    C
    negative
    D
    positive