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)`?

What may be the stable oxidation state of the transition elements with the following d electron configurations in the ground state of their atoms: 3d^(3),3d^(5),3d^(4)?

What may be the stable oxidation state of the transition elements with the following d electron configurations in the ground state of their atoms : 3d^(3), 3d^(5), 3d^(8) & 3d^(4) ?

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

What may be the stable oxidation state of the transition element with the following d-electron configuration in the group state of their atoms ? 3d^3, 3d^5, 3d^8, 3d^4

What may be the stable oxidation states of the first transition elements with the following d-electron configuration in the ground state of their atoms : d^(3), d^(5), d^(4), d^(8) ?

What may the possible oxidation state of transition metals with the following electronic configurations in the ground state of their atoms ? (i) 3d^(3)4s^(2) (ii) 3d^(5)4s^(2) (iii) 3d^(6)4s^(2) .