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Though all heavier helium isotopes decay with a half-life of <1 second, particle accelerator collisions have been used, to create unusual nuclei of elements such as helium, lithium, and nitrogen. The unusual nuclear structures of such isotopes may offer insights into the isolated properties of neutrons and physics beyond the Standard Model. [28 ...
It is possible to produce exotic helium isotopes, which rapidly decay into other substances. The shortest-lived heavy helium isotope is the unbound helium-10 with a half-life of 2.6(4) × 10 −22 s. [7] Helium-6 decays by emitting a beta particle and has a half-life of 0.8 second. Helium-7 and helium-8 are created in certain nuclear reactions ...
Pages in category "Isotopes of helium" The following 10 pages are in this category, out of 10 total. This list may not reflect recent changes. ...
Of the 26 "monoisotopic" elements that have only a single stable isotope, all but one have an odd atomic number—the single exception being beryllium. In addition, no odd-numbered element has more than two stable isotopes, while every even-numbered element with stable isotopes, except for helium, beryllium, and carbon, has at least three.
The Federal Helium Reserve was supposed to be sold off in 2021. Scientists hope it will remain in government hands. The fate of America's largest supply of helium is up in the air
This is a list of radioactive nuclides (sometimes also called isotopes), ordered by half-life from shortest to longest, in seconds, minutes, hours, days and years. Current methods make it difficult to measure half-lives between approximately 10 −19 and 10 −10 seconds.
For half a century, the economy in Connell, Washington, was hotter than oil. Up until last fall, this plant processed 300 million pounds of potatoes into french fries every year.
According to an analysis of data from the Bureau of Labor Statistics data, the health care sector has grown 8.2% in the last two years, more than double the rate of all other industries combined ...