Atomic number of Mn, Fe, Co and Ni are 25, 26 27 and 28 respectively.
Which of the following outer orbital octahedral complexes have same number of unpaired electrons?

Question

Atomic number of Mn, Fe, Co and Ni are 25, 26 27 and 28 respectively. Which of the following outer orbital octahedral complexes have same number of unpaired electrons?

Philoid · Accepted Answer

[MnCl₆]^3–

Mn³⁺(3d⁴)

[CoF₆]^3–

Co³⁺ (3d⁶)

Both Co³⁺ and Mn³⁺ have the same number of unpaired electrons=4

Thus, Options A & C are the correct answers.

Atomic number of Mn, Fe, Co and Ni are 25, 26 27 and 28 respectively.Which of the following outer orbital octahedral complexes have same number of unpaired electrons?

Atomic number of Mn, Fe, Co and Ni are 25, 26 27 and 28 respectively.
Which of the following outer orbital octahedral complexes have same number of unpaired electrons?