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Why group 18 elements are called inert ...

Why group 18 elements are called inert gases ? Write the general electronic configuration of group 18 elements.

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The element of group -18 have completely filled s and p orbitals, hence they are more stable and have least reactivity. Therefore grouu -18 elements are called inert gases.
`ns^(2)np^(6)` is the genetal electronic configuration of group elements.
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Knowledge Check

  • The general electronic configuration of d-block element is ……..

    A
    `ns^(2) nd^(1-10)`
    B
    `(n-1)d^(1-10) ns^(0-2)`
    C
    `(n-2)d^(1-10)(n-1)s^(1-0)`
    D
    `ns^(2)nd^(5)`

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