Krypton
Properties
| Atomic Number | 36 |
| CAS Registry Number | 7439-90-9 |
| Chemical Symbol | Kr |
History
The atomic number is 36 and the chemical symbol is Kr. The name derives from the Greek kryptos for concealed or hidden. It was discovered in liquified atmospheric air by the Scottish chemist William Ramsay and the English chemist Morris William Travers in 1898.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
