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Krypton is used in some photographic flashes for high speed photography. Krypton gas is also combined with mercury to make luminous signs that glow with a bright greenish-blue light. [39] Krypton is mixed with argon in energy efficient fluorescent lamps, reducing the power consumption, but also reducing the light output and raising the cost. [40]
Krypton-85 (85 Kr) is a radioisotope of krypton.. Krypton-85 has a half-life of 10.756 years and a maximum decay energy of 687 keV. [1] It decays into stable rubidium-85.Its most common decay (99.57%) is by beta particle emission with a maximum energy of 687 keV and an average energy of 251 keV.
96 Zr has a half-life of 2.34×10 19 years, and is the longest-lived radioisotope of zirconium. Of these natural isotopes, 90 Zr is the most common, making up 51.45% of all zirconium. 96 Zr is the least common, comprising only 2.80% of zirconium.
Xenon was first used for satellite ion engines during the 1970s. [192] It was later employed as a propellant for JPL's Deep Space 1 probe, Europe's SMART-1 spacecraft [27] and for the three ion propulsion engines on NASA's Dawn Spacecraft. [193] Chemically, the perxenate compounds are used as oxidizing agents in analytical chemistry.
Traditionally used in medicine and dental fillings, it is now avoided due to toxic side effects. [11] Can inactivate certain enzymes, as a result, both the metal and some compounds (especially methylmercury) are harmful to most life forms; there is a long and complex history of mercury poisoning in humans. [11] molybdenum: 42: 5
Krypton-81 is useful in determining how old the water beneath the ground is. [10] Radioactive krypton-81 is the product of spallation reactions with cosmic rays striking gases present in the Earth atmosphere, along with the six stable or nearly stable krypton isotopes. [11] Krypton-81 has a half-life of about 229,000 years.
Neodymium isotopes are used in various scientific applications. 142 Nd has been used for the production of short-lived isotopes of thulium and ytterbium. 146 Nd has been suggested for the production of 147 Pm, which is a source of radioactive power. Several neodymium isotopes have been used for the production of other promethium isotopes.
Krypton difluoride, KrF 2 is a chemical compound of krypton and fluorine. It was the first compound of krypton discovered. [2] It is a volatile, colourless solid at room temperature. The structure of the KrF 2 molecule is linear, with Kr−F distances of 188.9 pm. It reacts with strong Lewis acids to form salts of the KrF + and Kr 2 F + 3 ...