Boron
Properties
| Atomic Number | 5 |
| CAS Registry Number | 7440-42-8 |
| Chemical Symbol | B |
History
The atomic number is 5 and the chemical symbol is B. The name derives from the Arabic buraq for white. Although its compounds were known for thousands of years it was not isolated until 1808 when the French chemists Louis-Joseph Gay-Lussac and Louis-Jacques Thenard obtained boron in an impure state and the English chemist Humphry Davy prepared pure boron by electrolysis.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