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An element (X) belongs to fourth period and fifteenth group of the periodic table. Which one of the following is true regarding the outer electronic configuration of (X) ? It has

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half-filled d orbitals and completely filled orbital

completely filled s orbital and half-filled p orbitals

partially filled d orbitals and completely filled s orbital

completely filled s orbital and completely filled p orbitals

answer is C.

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Detailed Solution

The electronic configuration of X can be written as, X=1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p³

So, element 'X' has completely filled s- and d-orbitals and half- filled p-orbitals.

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