Calculate the number of unpaired electrons in the following gaseous ions: `Mn^(3+)` ,`Cr^(3+)`, `V^(2+)` and `Ti^(3+)`, Which one of these as the most stable in aqueous solution?

Explanation

.(Mn)^(3+)=3 (~d)^(4)+4. unpaired electrons .(Cr)^(3)=3 (~d), 3. unpaired electrons .(V)^(3 *)=3 (~d)^(2), 2. unpaired electrons .2+T r=3 d^(1), 1. unpaired electrons. shen .(Cr)^(3+). is most stable in aqueous solutions out of
wh all of them.