Among \( \mathrm{CrO} \), \( \mathrm{Cr_2O_3} \) and \( \mathrm{CrO_3} \), the sum of spin-only magnetic moment values of basic and amphoteric oxides is _______ \( 10^{-2} \) \( \mathrm{BM} \) (nearest integer). {Given atomic number of \( \mathrm{Cr} \) is \( 24 \)}
