У вашего броузера проблема в совместимости с HTML5
Magnetic nature of Ni(CO)4, [Ni(CN)4]2- and [NiCl4]2- explained using valence bond theory (vbt) in coordination compounds.
dsp2 hybridization & square planar shape & geometry & low spin.
Paramagnetic & diamagnetic nature;
hybridization of complexes, structure, shape, bond angle
geometrical structure and magnetic properties of coordination compounds / transition metal complexes.
sp3 hybridization and tetrahedral highspin complexes.
By Aditya vardhan, http://www.adichemistry.com/jee/qb/coordination-chemistry/1/q1.html.