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Hassium (108Hs) 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 was 265Hs in 1984. There are 12 known isotopes from 263Hs to 277Hs and 1–4 isomers. The most stable isotope of hassium cannot be determined based on existing data due to uncertainty that arises from the low number of measurements. The confidence interval of half-life of 269Hs corresponding to one standard deviation (the interval is ~68.3% likely to contain the actual value) is 16 ± 6 seconds, whereas that of 270Hs is 9 ± 4 seconds. It is also possible that 277mHs is more stable than both of these, with its half-life likely being 110 ± 70 seconds, but only one event of decay of this isotope has been registered

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  • Hassium (108Hs) je umělý prvek, v přírodě se nevyskytuje. Prvním objeveným izotopem bylo v roce 1984 265Hs. Je známo 15 izotopů hassia, s nukleonovými čísly 263 až 277; nejstabilnější (z těch, jejichž poločas přeměny je znám) jsou 270Hs (poločas přeměny 22 sekund) a 269Hs (přibližně 9,7 s), všechny ostatní mají poločas kratší než 0,8 sekundy. Bylo také popsáno 5 jaderných izomerů tohoto prvku. (cs)
  • El hassi (Hs) no té cap isòtop estable. S'han caracteritzat 15 isòtops, el més estable dels quals és el 277Hs, amb un període de semidesintegració de 40 minuts. (ca)
  • Hassium (108Hs) 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 was 265Hs in 1984. There are 12 known isotopes from 263Hs to 277Hs and 1–4 isomers. The most stable isotope of hassium cannot be determined based on existing data due to uncertainty that arises from the low number of measurements. The confidence interval of half-life of 269Hs corresponding to one standard deviation (the interval is ~68.3% likely to contain the actual value) is 16 ± 6 seconds, whereas that of 270Hs is 9 ± 4 seconds. It is also possible that 277mHs is more stable than both of these, with its half-life likely being 110 ± 70 seconds, but only one event of decay of this isotope has been registered as of 2016. (en)
  • Le hassium (Hs, numéro atomique 108) est un élément synthétique qui n'a par conséquent pas de masse atomique standard. Comme tous les éléments synthétiques, il ne possède aucun isotope stable. Le premier isotope synthétisé est 265Hs en 1984. Douze radioisotopes sont connus, de 263Hs à 277Hs, ainsi que quatre isomères (dont deux non confirmés). L'isotope à la plus grande durée de vie connue est 270Hs avec une demi-vie d'environ 30 secondes. (fr)
  • ハッシウム(Hs)は安定同位体を持たない。そのため標準原子量は定められない。 (ja)
  • 하슘은 인공 원소로, 표준 원자량은 정해져 있지 않으며 안정 동위 원소가 존재하지 않는다. 처음으로 발견된 동위 원소는 1984년에 합성된 265Hs이다. 원자량 263에서 277 사이에 총 12개의 방사성 동위 원소와 1~4개의 이성질핵이 발견되었다. 가장 안정한 하슘 동위 원소는 9.6초의 반감기를 가지는 269Hs이다. (ko)
  • Het chemisch element hassium (Hs), met een atoommassa van ongeveer 269 u, bezit geen stabiele isotopen en wordt dus geclassificeerd als radioactief element. De 12 radio-isotopen zijn onstabiel en hebben een relatief korte halfwaardetijd (de meeste minder dan een seconde). In de natuur komt geen hassium voor: alle isotopen zijn synthetisch bereid in een laboratorium. De eerste synthetische isotoop was 265Hs, in 1984. De kortstlevende isotoop van hassium is 264Hs, met een halfwaardetijd van ongeveer 540 microseconden. De langstlevende is 269Hs, met een halfwaardetijd van 9,6 seconden. (nl)
  • Изотопы хассия — разновидности атомов (и ядер) химического элемента хассия, имеющие разное содержание нейтронов в ядре. Самым долгоживущим известным изотопом является 269Hs с периодом полураспада 16 секунд, однако неподтвержденный изомер 277mHs может иметь период полураспада 130 секунд. (ru)
  • 𨭆 (釒黑)沒有穩定的同位素。其中最穩定的同位素是270Hs,半衰期有10秒。 (zh)
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dbp:notes
  • m, unc, mass#, spin#, SF (en)
dbp:symbol
  • Hs (en)
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rdfs:comment
  • Hassium (108Hs) je umělý prvek, v přírodě se nevyskytuje. Prvním objeveným izotopem bylo v roce 1984 265Hs. Je známo 15 izotopů hassia, s nukleonovými čísly 263 až 277; nejstabilnější (z těch, jejichž poločas přeměny je znám) jsou 270Hs (poločas přeměny 22 sekund) a 269Hs (přibližně 9,7 s), všechny ostatní mají poločas kratší než 0,8 sekundy. Bylo také popsáno 5 jaderných izomerů tohoto prvku. (cs)
  • El hassi (Hs) no té cap isòtop estable. S'han caracteritzat 15 isòtops, el més estable dels quals és el 277Hs, amb un període de semidesintegració de 40 minuts. (ca)
  • Le hassium (Hs, numéro atomique 108) est un élément synthétique qui n'a par conséquent pas de masse atomique standard. Comme tous les éléments synthétiques, il ne possède aucun isotope stable. Le premier isotope synthétisé est 265Hs en 1984. Douze radioisotopes sont connus, de 263Hs à 277Hs, ainsi que quatre isomères (dont deux non confirmés). L'isotope à la plus grande durée de vie connue est 270Hs avec une demi-vie d'environ 30 secondes. (fr)
  • ハッシウム(Hs)は安定同位体を持たない。そのため標準原子量は定められない。 (ja)
  • 하슘은 인공 원소로, 표준 원자량은 정해져 있지 않으며 안정 동위 원소가 존재하지 않는다. 처음으로 발견된 동위 원소는 1984년에 합성된 265Hs이다. 원자량 263에서 277 사이에 총 12개의 방사성 동위 원소와 1~4개의 이성질핵이 발견되었다. 가장 안정한 하슘 동위 원소는 9.6초의 반감기를 가지는 269Hs이다. (ko)
  • Het chemisch element hassium (Hs), met een atoommassa van ongeveer 269 u, bezit geen stabiele isotopen en wordt dus geclassificeerd als radioactief element. De 12 radio-isotopen zijn onstabiel en hebben een relatief korte halfwaardetijd (de meeste minder dan een seconde). In de natuur komt geen hassium voor: alle isotopen zijn synthetisch bereid in een laboratorium. De eerste synthetische isotoop was 265Hs, in 1984. De kortstlevende isotoop van hassium is 264Hs, met een halfwaardetijd van ongeveer 540 microseconden. De langstlevende is 269Hs, met een halfwaardetijd van 9,6 seconden. (nl)
  • Изотопы хассия — разновидности атомов (и ядер) химического элемента хассия, имеющие разное содержание нейтронов в ядре. Самым долгоживущим известным изотопом является 269Hs с периодом полураспада 16 секунд, однако неподтвержденный изомер 277mHs может иметь период полураспада 130 секунд. (ru)
  • 𨭆 (釒黑)沒有穩定的同位素。其中最穩定的同位素是270Hs,半衰期有10秒。 (zh)
  • Hassium (108Hs) 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 was 265Hs in 1984. There are 12 known isotopes from 263Hs to 277Hs and 1–4 isomers. The most stable isotope of hassium cannot be determined based on existing data due to uncertainty that arises from the low number of measurements. The confidence interval of half-life of 269Hs corresponding to one standard deviation (the interval is ~68.3% likely to contain the actual value) is 16 ± 6 seconds, whereas that of 270Hs is 9 ± 4 seconds. It is also possible that 277mHs is more stable than both of these, with its half-life likely being 110 ± 70 seconds, but only one event of decay of this isotope has been registered (en)
rdfs:label
  • Isotopes of hassium (en)
  • Isòtops del hassi (ca)
  • Izotopy hassia (cs)
  • Isotop hasium (in)
  • Isotopes du hassium (fr)
  • ハッシウムの同位体 (ja)
  • 하슘 동위 원소 (ko)
  • Isotopen van hassium (nl)
  • Изотопы хассия (ru)
  • 𨭆的同位素 (zh)
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