Respuesta :
If the field exists weak, it will contain more unpaired electrons and therefore high spin. Nb³⁺ and Ni²⁺ cannot form both high-spin and low-spin complexes.
What are high spin and low spin complexes?
If the field exists weak, it will contain more unpaired electrons and therefore high spin. In terms of wavelength, a field that absorbs high energy photons (in other terms, low wavelength light) contains low spin, and a field that absorbs low energy photons (high wavelength light) contains high spin.
The key distinction between high spin and low spin complexes exists that high spin complexes have unpaired electrons, whereas low spin complexes tend to have paired electrons. The phrases high spin and low spin exist connected to coordination complexes. These exist named spin states of complexes.
Nb³⁺ and Ni²⁺ cannot constitute both high-spin and low-spin complexes.
Therefore, the correct answers is an options (b) Nb³⁺ and (d) Ni²⁺.
To learn more about high spin and low spin complexes refer to:
https://brainly.com/question/27284963
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