JEE Main 202331 Jan, Morning shiftChemistryEasyd- and f-Block Elements158× since 2002Nd2+\mathrm{Nd^{2+}}Nd2+ = __________AOption A. 4f46s2\mathrm{4f^4 6s^2}4f46s2BOption B. 4f3\mathrm{4f^3}4f3COption C. 4f4\mathrm{4f^4}4f4DOption D. 4f26s2\mathrm{4f^2 6s^2}4f26s2CheckSkip · show solution