Chromium
Properties
| Atomic Number | 24 |
| CAS Registry Number | 7440-47-3 |
| Chemical Symbol | Cr |
History
The atomic number is 24 and the chemical symbol is Cr. The name derives from the Greek chroma for color from the many colored compounds of chromium. It was discovered in 1797 by the French chemist and pharmacist Nicolas-Louis Vauquelin. Vauquelin also isolated chromium in 1798.Holden, Norman E., (2004). History of the origin of the chemical elements and their discoverers. National Nuclear Data Center. Retrieved from http://www.nndc.bnl.gov/content/elements.html