Out of the following, how many of them have magnetic moment value as $2\sqrt{12}\mathrm{BM}$?
${\mathrm{Mn}}^{2+},{\mathrm{Mn}}^{1+},{\mathrm{Re}}^{2+},{\mathrm{Re}}^{1+},{\mathrm{Te}}^{1+},\mathrm{Cr}, \mathrm{W}$