1) What is the electron configuration of [tex]\mathrm{V}^{3 *}[/tex] ?
[tex][\mathrm{Ar}] 4 s^2 3 d^3[/tex]
[tex][\mathrm{Ar}] 4 \mathrm{~s}^2 3 \mathrm{~d}^0[/tex]
[tex][\mathrm{Ar}\space ] 45^0 3 d^2[/tex]
[tex][\mathrm{Ar}] 4 s^2 3 d^5[/tex]