An octahedral complex is formed when hybrid orbitals of the following type are involved:

What is the coordination number of the central metal ion if it forms an octahedral complex?

Which of the following complexes is an outer orbital complex?

Nickel combines with a uninegative monodentate ligand $(X^{-})$ to form a paramagnetic complex $[NiX_4]^{2-}$. The hybridisation involved and the number of unpaired electrons present in the complex are respectively:

Identify,from the following,the diamagnetic,tetrahedral complex.

Nickel $(Z = 28)$ forms a paramagnetic complex $[NiX_4]^{2-}$ with a uninegative monodentate ligand $X^-$. The number of unpaired electrons in nickel and the geometry of this complex ion are,respectively: