Nuclides with atomic number of 118 but with different mass numbers
Isotopes of oganesson (118Og)
Main isotopes[1]
Decay
abundance
half-life (t1/2)
mode
product
294Og
synth
0.7 ms[2][3]
α
290Lv
SF
–
view
talk
edit
Oganesson (118Og) is a synthetic element created in particle accelerators, and thus a standard atomic weight cannot be given. Like all synthetic elements, it has no stable isotopes. The first and only isotope to be synthesized was 294Og in 2002 and 2005; it has a half-life of 700 microseconds.
^Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3): 030001. doi:10.1088/1674-1137/abddae.
^Oganessian, Yu. Ts.; Utyonkov, V. K.; Lobanov, Yu. V.; Abdullin, F. Sh.; Polyakov, A. N.; Sagaidak, R. N.; Shirokovsky, I. V.; Tsyganov, Yu. S.; et al. (2006-10-09). "Synthesis of the isotopes of elements 118 and 116 in the 249Cf and 245Cm+48Ca fusion reactions". Physical Review C. 74 (4): 044602. Bibcode:2006PhRvC..74d4602O. doi:10.1103/PhysRevC.74.044602. Retrieved 2008-01-18.
^Oganessian, Yuri Ts.; Rykaczewski, Krzysztof P. (August 2015). "A beachhead on the island of stability". Physics Today. 68 (8): 32–38. Bibcode:2015PhT....68h..32O. doi:10.1063/PT.3.2880. OSTI 1337838.
and 29 Related for: Isotopes of oganesson information
event of 294Og was found at the lower beam energy, while no decays ofoganessonisotopes were found at the higher beam energy; a cross section of 0.9 pb...
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...
repulsion of protons may cause some nuclei, including isotopesofoganesson, to assume a bubble shape in the ground state with a reduced central density of protons...
expected to fall within the range of the island of stability, potentially conferring additional stability on some isotopes, especially 306Ubb which is expected...
cannot be given. Like all synthetic elements, it has no stable isotopes. The first isotope to be synthesized was 277Cn in 1996. There are 6 known radioisotopes...
11 have 5 stable isotopes, 9 have 4 stable isotopes, 5 have 3 stable isotopes, 16 have 2 stable isotopes, and 26 have 1 stable isotope. Additionally, about...
polonium, which ultimately decays to lead. Oganesson also has no stable isotopes, and its only known isotope 294Og is very short-lived (half-life 0.7 ms)...
because there are many reasonably long-lived isotopesof curium that can be used to make a target. The light isotopes can be made by fusing curium-243 with calcium-48...
list can instead be found in Template:Navbox element isotopes. The symbols for the named isotopesof hydrogen, deuterium (D), and tritium (T) are still...
Japan – identified and confirmed the elements lawrencium to oganesson according to the criteria of the IUPAC–IUPAP Transfermium Working Groups and subsequent...
Z = 118 (oganesson) with up to 177 neutrons demonstrates a slight stabilizing effect around elements 110 to 114 that may continue in heavier isotopes, consistent...
all its isotopes have half-lives of 8.1 hours or less, decaying into other astatine isotopes, bismuth, polonium, or radon. Most of its isotopes are very...
is a chemical element; it has symbol Pm and atomic number 61. All of its isotopes are radioactive; it is extremely rare, with only about 500–600 grams...
is now its scientific director. The heaviest element known of the periodic table, oganesson, is named after him, only the second time that an element was...
cannot be given. Like all artificial elements, it has no stable isotopes. The first isotope to be synthesized was 293Lv in 2000. There are five known radioisotopes...
has isotopes that are not radioactive, these are termed "stable" isotopes. All of the known stable isotopes occur naturally (see primordial isotope). The...
it has no stable isotopes. The first isotope to be synthesized was 289Fl in 1999 (or possibly 1998). Flerovium has six known isotopes, along with the unconfirmed...
to oganesson (Z = 118), would come after a long "sea of instability" from mendelevium (Z = 101) to roentgenium (Z = 111), and the flerovium isotopes in...
higher mass elements; oganesson (element 118) was synthesized by bombarding californium-249 atoms with calcium-48 ions. Users of californium must take...
synthesis of ununennium, as isotopes with half-lives below one microsecond would decay before reaching the detector, and the heavier isotopes cannot be...
of 282113 were detected. The aim of this experiment had been to synthesise the isotopes 281113 and 282113 that would fill in the gap between isotopes...
half-lives exceeding the age of the universe for the heaviest isotopes like 335Ts when beta decay is not considered. Lighter isotopesof tennessine may be produced...
weighted average of naturally occurring isotopes; but if no isotopes occur naturally in significant quantities, the mass of the most stable isotope usually appears...
heavier isotopesof moscovium, 289Mc and 290Mc, were discovered in 2009–2010 as daughters of the tennessine isotopes 293Ts and 294Ts; the isotope 289Mc...
surface layer of radium nitride (Ra3N2). All isotopesof radium are radioactive, the most stable isotope being radium-226 with a half-life of 1,600 years...
on Isotopes Periodic Table—Neon at the U.S. Geological Survey, by Eric Caldwell, posted January 2004, retrieved 10 February 2011 "Neon: Isotopes". Softciências...
than 103 (the stable isotope), the primary decay mode is electron capture and the primary decay product is ruthenium. In isotopes greater than 103, the...
half-life of about 5.1 minutes. The isotopes 280Rg and 281Rg have also been reported to have half-lives over a second. The remaining isotopes have half-lives...
Earth and they are synthetic. Of the elements with atomic numbers 1 to 92, most can be found in nature, having stable isotopes (such as oxygen) or very long-lived...
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