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On the periodic table of the elements it is a p-block element, a member of group 18 and the last member of period 7. Its only known isotope, oganesson-294 , is highly radioactive , with a half-life of 0.7 ms and, as of 2020, [update] only five atoms have been successfully produced. [ 19 ]
Lists of people with disabilities (2 C, 18 P) Pages in category "Lists of people by physical attribute" The following 12 pages are in this category, out of 12 total.
Billy and Benny McCrary, holders of Guinness World Records's World's Heaviest Twins. Alayna Morgan (1948–2009), heavy woman from Santa Rosa, California. Ricky Naputi (1973–2012), heaviest man from Guam. Carl Thompson (1982–2015), heaviest man in the United Kingdom whose weight at death was 413 kg (911 lb; 65 st 1 lb).
See also Category:People with disabilities. Subcategories. This category has the following 2 subcategories, out of 2 total. D. Lists of deaf people (6 P) P.
Helium is the most common element in the universe after hydrogen, with a mass fraction of about 24%. Most of the helium in the universe was formed during Big Bang nucleosynthesis, but the amount of helium is steadily increasing due to the fusion of hydrogen in stellar nucleosynthesis (and, to a very slight degree, the alpha decay of heavy ...
This is a list of the largest cosmic structures so far discovered. The unit of measurement used is the light-year (distance traveled by light in one Julian year; approximately 9.46 trillion kilometres). This list includes superclusters, galaxy filaments and large quasar groups (LQGs). The structures are listed based on their longest dimension.
List of Solar System objects most distant from the Sun; List of Solar System objects by size; Lists of geological features of the Solar System; List of natural satellites (moons) Lists of small Solar System bodies; Lists of comets; List of meteor showers; Minor planets. List of minor planets. List of exceptional asteroids; List of minor planet ...
Light elements undergoing nuclear fusion and heavy elements undergoing nuclear fission release energy as their nucleons bind more tightly, so 62 Ni might be expected to be common. However, during stellar nucleosynthesis the competition between photodisintegration and alpha capturing causes more 56 Ni to be produced than 62 Ni ( 56 Fe is ...