Roentgenium-283

Properties and data of the isotope ²⁸³Rg.

Content

Unconfirmed isotope.

General data

Name of the isotope:Roentgenium-283; Rg-283Symbol:²⁸³Rg or 283111RgMass number A:283 (= number of nucleons)Atomic number Z:111 (= number of protons)Neutrons N:172Isotopic mass:283.17054(79) u (atomic weight of Roentgenium-283)Nuclide mass:283.109658 u (calculated nuclear mass without electrons)Mass excess:158.85699 MeVMass defect:2.188404104 u (per nucleus)Nuclear binding energy:2038.48529245 MeV (per nucleus)
7.20312824 MeV (average binding energy per nucleon)Half-life:5.1 minSpin and parity:
(nuclear angular momentum)

Radioactive Decay

Half-life T_½ = 5.1 min (minutes).

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
SF	div	?

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 172) and isobaric (same nucleon number A = 283) with Roentgenium-283. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.