What is crystal structure of cr?

Cr (Chromium) has a body-centered cubic (bcc) crystal structure, with each atom surrounded by eight nearest neighbors. It has a lattice constant of 2.88 Šand a coordination number of 8. The bcc unit cell of Cr contains two atoms, with a volume of 23.4 ų. Crystals of pure chromium are hard and brittle, and exhibit a silvery-blue metallic luster. Chromium is used in a variety of applications, including stainless steel production, electroplating, and alloying with other metals to improve their properties. Its crystal structure plays an important role in determining its physical and chemical properties.