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What peculiarity do you see in the elect...

What peculiarity do you see in the electronic configuration of noble elements except Helium?

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The correct Answer is:
Expect Helium all other elements have 8 electrons in the outermost shell, hence shall be considered to be chemically stable.
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Knowledge Check

  • The electronic configuration of four elements are:

    A
    `[Xe] 6s^1`
    B
    `[Xe] 4f^14, 5d^1, 6s^2`
    C
    `[Ar] 4s^2, 3d^10, 4p^5`
    D
    `[Ar]3d^7, 4s^2`

  • The general electronic configuration of transition elements is:

    A
    `ns^(1-2) (n-1)d^(1-10)`
    B
    `ns^2 (n-1) d^10`
    C
    `(n-1) d^10 s^2`
    D
    `ns^2 np^5`

  • The general electronic configuration of transition elements is:

    A
    `(n-1)d^(1-10)ns^(1-2`
    B
    `ns^(2)(n-1)d^(10)`
    C
    `(n-1)d^(10)ns^(2)`
    D
    `ns^(2)np^(5)`

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