1.An element X belongs to fourth period and fifteenth group of the periodic table. Which of the following statements is true?a.It has completely filled s-orbital and a partially filled d-orbitalb.It has completely filled s- and p-orbitals and a partially filled d-orbitalc.It has completely filled s- and p-orbitals and a half filled d-orbitald.It has a half filled p-orbital and completely filled s- and d-orbitalsLogin to continueOnly logged in users canattempt or see the solution.