Nuclides with atomic number of 102 but with different mass numbers
Isotopes of nobelium (102No)
Main isotopes[1]
Decay
abundance
half-life (t1/2)
mode
product
253No
synth
1.6 min
α55%
249Fm
β+45%
253Md
254No
synth
51 s
α90%
250Fm
β+10%
254Md
255No
synth
3.5 min
α61%
251Fm
β+39%
255Md
257No
synth
25 s
α99%
253Fm
β+1%
257Md
259No
synth
58 min
α75%
255Fm
ε25%
259Md
SF<10%
–
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Nobelium (102No) is a synthetic element, and thus a standard atomic weight cannot be given. Like all synthetic elements, it has no stable isotopes. The first isotope to be synthesized (and correctly identified) was 254No in 1966. There are fourteen known radioisotopes, which are 248No to 260No and 262No, and many isomers. The longest-lived isotope is 259No with a half-life of 58 minutes. The longest-lived isomer is 251m1No with a half-life of 1.02 seconds.
^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.
and 29 Related for: Isotopes of nobelium information
Nobelium (102No) is a synthetic element, and thus a standard atomic weight cannot be given. Like all synthetic elements, it has no stable isotopes. The...
nobelium can only be produced in particle accelerators by bombarding lighter elements with charged particles. A total of twelve nobeliumisotopes are...
expected to fall within the range of the island of stability, potentially conferring additional stability on some isotopes, especially 306Ubb which is expected...
Long-lived isotopesofnobelium and isotopesof lawrencium (and of heavier elements) have relatively short half-lives. For nobelium, 13 isotopes are known...
credited for being the primary creator of the periodic table of the chemical elements (1955). 102. nobelium, No, named after Alfred Nobel (1958). The...
; Mosat, P. (24 March 2022). "Study of the production and decay properties of neutron-deficient nobeliumisotopes". The European Physical Journal A. 58...
found in nature. All known isotopesof bohrium are highly radioactive; the most stable known isotope is 270Bh with a half-life of approximately 2.4 minutes...
list can instead be found in Template:Navbox element isotopes. The symbols for the named isotopesof hydrogen, deuterium (D), and tritium (T) are still...
aimed at a mixed-isotope californium target containing 249Cf, 250Cf, and 251Cf, with the aim of producing the heavier oganesson isotopes 295Og and 296Og...
Should the synthesis of unbiunium isotopes in such a reaction be successful, the resulting nuclei would decay through isotopesof ununennium that could...
although formation of the lighter elements nobelium or seaborgium is more favored. One last possibility to synthesize isotopes near the island is to...
29 September 1992. The name "nobelium" remained unchanged on account of its widespread usage. Although stable isotopesof the lightest elements usually...
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...
occurring isotopes. Several radioactive isotopes have been synthesized in the laboratory, either by fusing two atoms or by observing the decay of heavier...
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...
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...
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...
synthesis of ununennium, as isotopes with half-lives below one microsecond would decay before reaching the detector, and the heavier isotopes cannot be...
artificial elements, it has no stable isotopes. The first isotope to be synthesized was 256Md (which was also the first isotopeof any element produced one atom...
known isotopes are extremely radioactive, and have only been created in a laboratory. The most stable known isotope, copernicium-285, has a half-life of approximately...
alpha-decay half-lives of several unbinilium isotopes (292–304Ubn) have been predicted to be around 1–20 microseconds. Some heavier isotopes may be more stable;...
naturally occurring isotopes been found to exist. It is believed that the synthesis of unbiquadium will be far more challenging than that of lighter undiscovered...
name "nobelium" remained unchanged on account of its widespread usage. Neve, Francesco (2022). "Chemistry of superheavy transition metals". Journal of Coordination...
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...
island of stability is a predicted set ofisotopesof superheavy elements that may have considerably longer half-lives than known isotopesof these elements...
Mendelevium, Nobelium, and Lawrencium". In Morss, Lester R.; Edelstein, Norman M.; Fuger, Jean; Katz, Joseph Jacob (eds.). The Chemistry of the Actinide...
synthesized by neutron-capture. Because of this impediment in forming heavier isotopes, these short-lived isotopes 258–260Fm constitute the "fermium gap...
occurring isotopes. Several radioactive isotopes have been synthesized in the laboratory, either by fusing two atoms or by observing the decay of heavier...
although formation of the lighter elements nobelium or seaborgium is more favored. One last possibility to synthesize isotopes near the island is to...
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