Search results
Results From The WOW.Com Content Network
The decay chain of uranium-238, known as the uranium series or radium series, of which radon-222 is a member. Radon-222 is generated in the uranium series from the alpha decay of radium-226, which has a half-life of 1600 years. Radon-222 itself alpha decays to polonium-218 with a half-life of approximately 3.82 days, making it the most stable ...
210 Pb is formed from the decay of 222 Rn. Here is a typical deposition rate of 210 Pb as observed in Japan as a function of time, due to variations in radon concentration. [71] Discussions of radon concentrations in the environment refer to 222 Rn, the decay product of uranium and radium.
There are 39 known isotopes of radon (86 Rn), from 193 Rn to 231 Rn; all are radioactive.The most stable isotope is 222 Rn with a half-life of 3.8235 days, which decays into 218 Po
The decay-chain of uranium-238, which contains radium-226 as an intermediate decay product. 226 Ra occurs in the decay chain of uranium-238 (238 U), which is the most common naturally occurring isotope of uranium. It undergoes alpha decay to radon-222, which is also radioactive; the decay chain ultimately terminates at lead-206.
This page lists radioactive nuclides by their half-life.
A naturally-occurring gas formed as a decay product of radium, radon is one of the densest substances that remains a gas under normal conditions, and is considered to be a health hazard due to its radioactivity. Its most stable isotope, radon-222, has a half-life of 3.8 days.
There are many relatively short beta decay chains, at least two (a heavy, beta decay and a light, ... 222 Rn: 222 Rn: Rn Radon, Radium Emanation
Radon compounds are chemical compounds formed by the element radon (Rn). Radon is a noble gas, i.e. a zero-valence element, and is chemically not very reactive. The 3.8-day half-life of radon-222 makes it useful in physical sciences as a natural tracer. Because radon is a gas under normal circumstances, and its decay-chain parents are not, it ...