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Which of the following element is expected to have
P highest electron gain enthalpy -

W.
(1) \( 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{5} \)
(2) \( 1 s^{2} 2 s^{2} 2 p^{3} \)
(3) \( 1 s^{2} 2 s^{2} 2 p^{4} \)
(4) \( 1 s^{2} 2 s^{2} 2 p^{5} \)
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