Question: is ni co 4 paramagnetic?
Answer: Hence, [NiCl4]2- is paramagnetic. In Ni(CO)4, Ni is in the zero oxidation state i.e., it has a configuration of 3d8 4s2. But CO is a strong field ligand. ... Since no unpaired electrons are present in this case, [Ni(CO)4] is diamagnetic.