Rhenium-180

Properties and data of the isotope ¹⁸⁰Re.

Content

General data

Name of the isotope:Rhenium-180; Re-180Symbol:¹⁸⁰Re or 18075ReMass number A:180 (= number of nucleons)Atomic number Z:75 (= number of protons)Neutrons N:105Isotopic mass:179.950792(23) u (atomic weight of Rhenium-180)Nuclide mass:179.9096527 u (calculated nuclear mass without electrons)Mass excess:-45.83696 MeVMass defect:1.54590158 u (per nucleus)Nuclear binding energy:1439.99804636 MeV (per nucleus)
7.99998915 MeV (average binding energy per nucleon)Separation energy:S_N = 7.32(3) MeV (first neutron)
S_P = 3.831(26) MeV (first proton)Half-life:2.46(3) minDecay constant λ:0.0046961191094847 s^-1Specific activity α:1.579926858790 × 10⁺¹⁹ Bq g^-1
427007259.13268 Ci g^-1Spin and parity:
(nuclear angular momentum)(1)-Magnetic dipole moment:μ(μ_N) = 1.6(2)Nuclear g-factor:g_l = 1.6Year of discovery:1955

Radioactive Decay

Half-life T_½ = 2.46(3) min (minutes) respectively 1.476 × 10² seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EE/β⁺	¹⁸⁰W	100 %	3.799(21) MeV

Parent Nuclides

Direct parent isotope is: ¹⁸⁰Os.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 105) and isobaric (same nucleon number A = 180) with Rhenium-180. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 105	Isobar A = 180
63	¹⁶⁸Eu
64	¹⁶⁹Gd
65	¹⁷⁰Tb
66	¹⁷¹Dy
67	¹⁷²Ho
68	¹⁷³Er
69	¹⁷⁴Tm
70	¹⁷⁵Yb	¹⁸⁰Yb
71	¹⁷⁶Lu	¹⁸⁰Lu
72	¹⁷⁷Hf	¹⁸⁰Hf
73	¹⁷⁸Ta	¹⁸⁰Ta
74	¹⁷⁹W	¹⁸⁰W
75	¹⁸⁰Re	¹⁸⁰Re
76	¹⁸¹Os	¹⁸⁰Os
77	¹⁸²Ir	¹⁸⁰Ir
78	¹⁸³Pt	¹⁸⁰Pt
79	¹⁸⁴Au	¹⁸⁰Au
80	¹⁸⁵Hg	¹⁸⁰Hg
81	¹⁸⁶Tl	¹⁸⁰Tl
82	¹⁸⁷Pb	¹⁸⁰Pb
83	¹⁸⁸Bi
84	¹⁸⁹Po
85	¹⁹⁰At