Rhenium-183

Properties and data of the isotope ¹⁸³Re.

Content

General data

Name of the isotope:Rhenium-183; Re-183Symbol:¹⁸³Re or 18375ReMass number A:183 (= number of nucleons)Atomic number Z:75 (= number of protons)Neutrons N:108Isotopic mass:182.950821(9) u (atomic weight of Rhenium-183)Nuclide mass:182.9096817 u (calculated nuclear mass without electrons)Mass excess:-45.80994 MeVMass defect:1.571867328 u (per nucleus)Nuclear binding energy:1464.18498483 MeV (per nucleus)
8.00101085 MeV (average binding energy per nucleon)Separation energy:S_N = 8.43(10) MeV (first neutron)
S_P = 4.852(8) MeV (first proton)Half-life:70.0(14) dDecay constant λ:1.146076687433 × 10^-7 s^-1Specific activity α:3.792217169239 × 10⁺¹⁴ Bq g^-1
10249.235592539 Ci g^-1Spin and parity:
(nuclear angular momentum)5/2+Magnetic dipole moment:μ(μ_N) = +3.160(13)Quadrupole moment Q:+2.1(2) barn (100 fm²)Nuclear g-factor:g_l = 1.264Year of discovery:1950

Radioactive Decay

Half-life T_½ = 70.0(14) d respectively 6.048 × 10⁶ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EE	¹⁸³W	100 %	0.556(8) MeV

Parent Nuclides

Direct parent isotope is: ¹⁸³Os.

Nuclear Isomers

Nuclear isomers or excited states with the activation energy in keV related to the ground state.

Nuclear Isomer	Excitation Energy	Half-life	Spin
^183mRe	1907.21(15) keV	1.04(4) ms	(25/2)+

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 108) and isobaric (same nucleon number A = 183) with Rhenium-183. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 108	Isobar A = 183
66	¹⁷⁴Dy
67	¹⁷⁵Ho
68	¹⁷⁶Er
69	¹⁷⁷Tm
70	¹⁷⁸Yb	¹⁸³Yb
71	¹⁷⁹Lu	¹⁸³Lu
72	¹⁸⁰Hf	¹⁸³Hf
73	¹⁸¹Ta	¹⁸³Ta
74	¹⁸²W	¹⁸³W
75	¹⁸³Re	¹⁸³Re
76	¹⁸⁴Os	¹⁸³Os
77	¹⁸⁵Ir	¹⁸³Ir
78	¹⁸⁶Pt	¹⁸³Pt
79	¹⁸⁷Au	¹⁸³Au
80	¹⁸⁸Hg	¹⁸³Hg
81	¹⁸⁹Tl	¹⁸³Tl
82	¹⁹⁰Pb	¹⁸³Pb
83	¹⁹¹Bi
84	¹⁹²Po
85	¹⁹³At
86	¹⁹⁴Rn