How many of the following ions have same electronic configuration `Mn^(+2), Fe^(+3), Cr^(+1), Sc^(+3), Fe^(+2)`

The electronic configuration of Sc^(3+) is:

Which of the following pairs of ions have the same electronic configuration A) Cr^(+3),Fe^(+3) B) Fe^(+3),Mn^(+2) C) Fe^(+3),Co^(+3) D) Sc^(+3),Cr^(+3)

Which of the following pairs of ions have the same electronic configuration A) Cr^(+3),Fe^(+3) B) Fe^(+3),Mn^(+2) C) Fe^(+3),Co^(+3) D) Sc^(+3),Cr^(+3)

How many of the following ions have the same magnetic moments ? Fe^(2+)Mn^(2+)Cr^(2+)Ni^(2+)

Which of the following is the correct electronic configuration of Fe^(3+) ion ? (Z for Fe = 26)

How many of the following ions have spin mangnetic moment more than 4 B.M . Ti^(3+), Cu^(+), Ni^(2+),Fe^(3+),Mn^(2+), Co^(2+)

Among the following series of transition metal ions, how many metals ions have d^(2) electronic configuration Fe^(4+), V^(3+), Sn^(2+), Au^(3+)Ti^(2+), As^(3+), Cr^(3+), Mn^(5+)Co^(3+), Zr^(2+), Cd^(2+), Mo^(4+), La^(2+), Ta^(4+), Co^(6+), Ni^(4+)

Which one of the following ions has electronic configuration [Ar]3d^(6) ? (At. Nos. Mn = 25, Fe = 26, Co = 27, Ni = 28)

(i)Which one out of Fe^(2+) and Fe^(3+) ions is more paramagnetic and why (ii)Which of the following ions are expected to becoloured and why Fe^(2+), Mn^(2+), Cr^(3+), Cu^(+) Sc^(3+), Ti^(4+)

Answer the following (i) Which one of Fe^(2+) and Fe^(3+) ions is more paramagnetic and why? (ii) Which of the following ions are expected to coloured and why? Fe^(2+), Mn^(2+), Cr^(3+), Cu^(+), Sc^(3+),Ti^(4+) (iii) Name the two elements of first transition series which have abnormal electronic configuration and why