\textbf{76--} If the electron configuration of atom $^{96}X$ resembles the electron configuration of the capacity atom of the twenty-fourth element of the periodic table, and the number of electrons in one of its stable ions equals the number of electrons in the first atom of the first period of the fifth period of the periodic table, what is the number of neutrons in atom $X$?
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$52\ (1) \qquad\qquad 54\ (2) \qquad\qquad 56\ (3) \qquad\qquad 58\ (4)$
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