Darmstadtium-273

Properties and data of the isotope ²⁷³Ds.

Content

See also: list of Darmstadtium isotopes.

General data

Name of the isotope:Darmstadtium-273; Ds-273Symbol:²⁷³Ds or 273110DsMass number A:273 (= number of nucleons)Atomic number Z:110 (= number of protons)Neutrons N:163Isotopic mass:273.14853(14) u (atomic weight of Darmstadtium-273)Nuclide mass:273.0881963 u (calculated nuclear mass without electrons)Mass excess:138.3548 MeVMass defect:2.124604828 u (per nucleus)Nuclear binding energy:1979.05664965 MeV (per nucleus)
7.24929176 MeV (average binding energy per nucleon)Half-life:0.17 msSpin and parity:
(nuclear angular momentum)13/2-Year of discovery:1996

Radioactive Decay

Half-life T_½ = 0.17 ms.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
α	²⁶⁹Hs	100 %	11.370 MeV

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 163) and isobaric (same nucleon number A = 273) with Darmstadtium-273. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 163	Isobar A = 273
103	²⁶⁶Lr
104	²⁶⁷Rf
105	²⁶⁸Db
106	²⁶⁹Sg
107	²⁷⁰Bh	²⁷³Bh
108	²⁷¹Hs	²⁷³Hs
109	²⁷²Mt	²⁷³Mt
110	²⁷³Ds	²⁷³Ds
111	²⁷⁴Rg	²⁷³Rg