Number of unpaired electrons in square planer(ni(cn)4)2-Spin only magnetic moment of fe2+ is

Number of unpaired electrons in square planer Ni(CN)4)2- 
furthermore, Spin just attractive snapshot of fe2+ is 
In [Ni(CN)4]2-, there is Ni2+ particle for which the electronic setup in the valence shell is 3d8 4s0. 
In nearness of solid field CN-particles, every one of the electrons are matched up. The discharge 4d, 3s and two 4p orbitals experience dsp2 hybridization to make bonds with CN-ligands in square planar geometry. In this way [Ni(CN)4]2-is diamagnetic.