Question

Which one of the following ions has electronic configuration [Ar] 3d⁶?

(At. no.: Mn = 25, Fe = 26, Co = 27, Ni = 28)

पर्याय

• Ni³⁺

• Mn³⁺

• Fe³⁺

• Co³⁺

Answer 1

Co³⁺

Explanation:

The electronic configuration [Ar] 3d⁶ is found in Co³⁺ ion.