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Hassium-271

Properties and data of the isotope 271Hs.


Contents

 

Hassium-271 isotope

See also: list of Hassium isotopes.

 

General data

Name of the isotope:Hassium-271; Hs-271Symbol:271Hs or 271108HsMass number A:271 (= number of nucleons)Atomic number Z:108 (= number of protons)Neutrons N:163Isotopic mass:271.13717(32) u (atomic weight of Hassium-271)Nuclide mass:271.0779331 u (calculated nuclear mass without electrons)Mass excess:127.77303 MeVMass defect:2.120314764 u (per nucleus)Nuclear binding energy:1975.06048078 MeV (per nucleus)
7.28804605 MeV (average binding energy per nucleon)
Half-life:4 sDecay constant λ:0.17328679513999 s-1Specific activity α:3.850765643911 × 10+20 Bq g-1
10407474713.274 Ci g-1
Spin and parity:
(nuclear angular momentum)

 

Radioactive Decay

Half-life T½ = 4 s.

Decay
mode
DaughterProbabilityDecay energyγ energy
(intensity)
α267Sg

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 163) and isobaric (same nucleon number A = 271) with Hassium-271. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

ZIsotone N = 163Isobar A = 271
103266Lr
104267Rf
105268Db
106269Sg271Sg
107270Bh271Bh
108271Hs271Hs
109272Mt271Mt
110273Ds271Ds
111274Rg

 

External data and identifiers

Adopted Levels, Gammas:NuDat 271Hs

 


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Last update: 2020-11-04


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