Explanation:
Magnetic moment \({\rm{\mu = }}\sqrt {{\rm{n(n + 2)}}} {\rm{BM}}\)
\({\rm{1}}{\rm{.73 = }}\sqrt {{\rm{n(n + 2}})} \;\;\;\,\,\,\,\,\,\therefore {\rm{n = 1}},\) it has one unpaired electrons hence electronic configuration is\({\rm{[Ar]3}}{{\rm{d}}^{\rm{1}}}\) and electronic configuration for \({\rm{Z = 22}}\,\,{\rm{is}}\,\,{\rm{[Ar]3}}{{\rm{d}}^{\rm{2}}}{\rm{5}}{{\rm{s}}^{\rm{2}}}\). Hence charge on Ti is +3 .