A mixture of argon and krypton is used to fill some types of fluorescent light bulbs. One is in high speed photography, and krypton is used in some kinds of photographic flashes. Given the high costs of obtaining the element, krypton does not have many practical applications. The chemists discovered neon a couple of weeks later, and Ramsey received the Noble Prize in Chemistry in 1904 for the discovery of krypton and other noble gases. The element was discovered by Morris Travers and Sir William Ramsay in 1898 in Britain. It has application in dating old ground water, but near surface water, the isotope is highly volatile. Due to its radioactivity, the half-life of krypton-81 is 230,000 years. One of them, Kr-81 occurs with other isotopes of the element and is created as a result of atmospheric reactions.
Krypton has 30 isomers and unstable isotopes and 6 stable isotopes. It is characterized by several spectral signatures or sharp emission lines, and the strongest of them are yellow and green.
Krypton (atomic number 36, symbol Kr) is a chemical element and a tasteless, odorless, and colorless noble gas, which is inert.