What may be the stable oxidation-state of the transition element with the following d electron configurations. in the ground state of their atoms ': 3d^3,3d^5,3d^8 and 3d^4

Explanation

The most stable oxidation state for .3 (~d)^(2) 4 (~s)^(2). is .+5 .(3 d^(2)+3. and .+4 ..
The most stable oxidation state for .3 (~d)^(3) 4 (~s)^(3)=+6. .(3 d^(0)]. and.also .+1,+3 . and .+4. The most stable.oxidation state for .3+4 s^(2)=+2,+7. .(3 d^(5) .3 d^(0). and also .+4. and .+6. The most stable oxidation. state for .3 d^(8) 4 s^(2)=+2. The most stable oxidation state for .3 (~d)^(4).. There is no d configuration in ground state. The maximum oxidation states of reasonable stability corresgond to the sum of and d-electrons upto Mn. After that. there is abropt decrease in the stability of higher oxidation states.