Chromium is a chemical element with symbol Cr and atomic number 24. It is the first element in group 6. It is a steely-grey, lustrous, hard and brittle metal which takes a high polish, resists tarnishing, and has a high melting point.

Atomic Weight: 51.9961
Density:       7.19 g/cm3
Melting Point: 1907 °C
Boiling Point: 2671 °C