Zn is soft whereas Cr is hard. give reason. Share with your friends Share 4 Reuben Jacob answered this Zn has completely filled d-orbital, hence it cannot form metallic bonds,while Cr has half filled d-orbital and can form metallic bonds. Since metallic bonds make a metal hard, Cr is hard and Zn is soft. 19 View Full Answer Rufus answered this zn is hard -1