Rhenium-192m2

Properties and data of the isotope ^192m2Re.

Contents

General data

Name of the isotope:Rhenium-192m2; Re-192m2Symbol:^192m2Re or 192m275ReMass number A:192 (= number of nucleons)Atomic number Z:75 (= number of protons)Neutrons N:117Isotopic mass:191.96609(8) u (atomic weight of Rhenium-192m2)
Excitation energy: 267(10) keVNuclide mass:191.9249507 u (calculated nuclear mass without electrons)Mass excess:-31.58696 MeVMass defect:1.634582572 u (per nucleus)Nuclear binding energy:1522.60385832 MeV (per nucleus)
7.93022843 MeV (average binding energy per nucleon)Half-life:61 sDecay constant λ:0.01136306853377 s^-1Specific activity α:3.582722477040 × 10⁺¹⁹ Bq g^-1
968303372.17314 Ci g^-1Spin and parity:
(nuclear angular momentum)

Radioactive Decay

Half-life T_½ = 61 s respectively 6.1 × 10¹ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
Iso	¹⁹²Re	100 %

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
¹⁹²Re		16(1) s
^192m1Re	160.1+x keV	85(10) μs

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 117) and isobaric (same nucleon number A = 192) with Rhenium-192m2. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 117	Isobar A = 192
71	¹⁸⁸Lu
72	¹⁸⁹Hf
73	¹⁹⁰Ta	¹⁹²Ta
74	¹⁹¹W	¹⁹²W
75	¹⁹²Re	¹⁹²Re
76	¹⁹³Os	¹⁹²Os
77	¹⁹⁴Ir	¹⁹²Ir
78	¹⁹⁵Pt	¹⁹²Pt
79	¹⁹⁶Au	¹⁹²Au
80	¹⁹⁷Hg	¹⁹²Hg
81	¹⁹⁸Tl	¹⁹²Tl
82	¹⁹⁹Pb	¹⁹²Pb
83	²⁰⁰Bi	¹⁹²Bi
84	²⁰¹Po	¹⁹²Po
85	²⁰²At	¹⁹²At
86	²⁰³Rn
87	²⁰⁴Fr
88	²⁰⁵Ra
89	²⁰⁶Ac
90	²⁰⁷Th