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(Top) 1 List of isotopes 2 Rhenium-186 3 References

Isotopes of rhenium

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Isotopesofrhenium (₇₅Re)

Main isotopes^[1]			Decay
	abundance	half-life (t_1/2)	mode	product
¹⁸⁵Re	37.4%	stable
¹⁸⁶Re	synth	3.7185 d	β⁻	¹⁸⁶Os
¹⁸⁶Re	synth	3.7185 d	ε	¹⁸⁶W
^186mRe	synth	2×10⁵ y	IT	¹⁸⁶Re
^186mRe	synth	2×10⁵ y	β⁻	¹⁸⁶Os
¹⁸⁷Re	62.6%	4.12×10¹⁰ y	β⁻	¹⁸⁷Os

Standard atomic weight A_r°(Re)

186.207±0.001^[2]

186.21±0.01 (abridged)^[3]

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Naturally occurring rhenium (₇₅Re) is 37.4% ¹⁸⁵Re, which is stable (although it is predicted to decay), and 62.6% ¹⁸⁷Re, which is unstable but has a very long half-life (4.12×10¹⁰ years).^[4] Among elements with a known stable isotope, only indium and tellurium similarly occur with a stable isotope in lower abundance than the long-lived radioactive isotope.

There are 36 other unstable isotopes recognized, the longest-lived of which are ¹⁸³Re with a half-life of 70 days, ¹⁸⁴Re with a half-life of 38 days, ¹⁸⁶Re with a half-life of 3.7186 days, ¹⁸²Re with a half-life of 64.0 hours, and ¹⁸⁹Re with a half-life of 24.3 hours. There are also numerous isomers, the longest-lived of which are ^186mRe with a half-life of 200,000 years and ^184mRe with a half-life of 177.25 days.^[5] All others have half-lives less than a day.

List of isotopes[edit]

Nuclide ^{[n 1]}	Z	N	Isotopic mass (Da) ^{[n 2]}^{[n 3]}	Half-life ^{[n 4]}^{[n 5]}	Decay mode ^{[n 6]}	Daughter isotope ^{[n 7]}^{[n 8]}	Spin and parity ^{[n 9]}^{[n 5]}	Natural abundance (mole fraction)
Nuclide ^{[n 1]}	Excitation energy^{[n 5]}			Half-life ^{[n 4]}^{[n 5]}	Decay mode ^{[n 6]}	Daughter isotope ^{[n 7]}^{[n 8]}	Spin and parity ^{[n 9]}^{[n 5]}	Normal proportion	Range of variation
¹⁵⁹Re^[6]	75	84		21(4) μs	p (92.5%)	¹⁵⁸W	(11/2−)
¹⁵⁹Re^[6]	75	84		21(4) μs	α (7.5%)	¹⁵⁵Ta	(11/2−)
¹⁶⁰Re^[7]	75	85	159.98212(43)#	611(7) μs	p (89%)	¹⁵⁹W	(2−)
¹⁶⁰Re^[7]	75	85	159.98212(43)#	611(7) μs	α (11%)	¹⁵⁶Ta	(2−)
^160mRe^[8]	185(21)# keV			2.8(1) μs	IT	¹⁶⁰Re	(9+)
¹⁶¹Re	75	86	160.97759(22)	0.37(4) ms	p	¹⁶⁰W	1/2+
^161mRe	123.8(13) keV			15.6(9) ms	α	¹⁵⁷Ta	11/2−
¹⁶²Re	75	87	161.97600(22)#	107(13) ms	α (94%)	¹⁵⁸Ta	(2−)
¹⁶²Re	75	87	161.97600(22)#	107(13) ms	β⁺ (6%)	¹⁶²W	(2−)
^162mRe	173(10) keV			77(9) ms	α (91%)	¹⁵⁸Ta	(9+)
^162mRe	173(10) keV			77(9) ms	β⁺ (9%)	¹⁶²W	(9+)
¹⁶³Re	75	88	162.972081(21)	390(70) ms	β⁺ (68%)	¹⁶³W	(1/2+)
¹⁶³Re	75	88	162.972081(21)	390(70) ms	α (32%)	¹⁵⁹Ta	(1/2+)
^163mRe	115(4) keV			214(5) ms	α (66%)	¹⁵⁹Ta	(11/2−)
^163mRe	115(4) keV			214(5) ms	β⁺ (34%)	¹⁶³W	(11/2−)
¹⁶⁴Re	75	89	163.97032(17)#	0.53(23) s	α (58%)	¹⁶⁰Ta	high
¹⁶⁴Re	75	89	163.97032(17)#	0.53(23) s	β⁺ (42%)	¹⁶⁴W	high
^164mRe	120(120)# keV			530(230) ms			(2#)−
¹⁶⁵Re	75	90	164.967089(30)	1# s	β⁺	¹⁶⁵W	1/2+#
¹⁶⁵Re	75	90	164.967089(30)	1# s	α	¹⁶¹Ta	1/2+#
^165mRe	47(26) keV			2.1(3) s	β⁺ (87%)	¹⁶⁵W	11/2−#
^165mRe	47(26) keV			2.1(3) s	α (13%)	¹⁶¹Ta	11/2−#
¹⁶⁶Re	75	91	165.96581(9)#	2# s	β⁺	¹⁶⁶W	2−#
¹⁶⁶Re	75	91	165.96581(9)#	2# s	α	¹⁶²Ta	2−#
¹⁶⁷Re	75	92	166.96260(6)#	3.4(4) s	α	¹⁶³Ta	9/2−#
¹⁶⁷Re	75	92	166.96260(6)#	3.4(4) s	β⁺	¹⁶⁷W	9/2−#
^167mRe	130(40)# keV			5.9(3) s	β⁺ (99.3%)	¹⁶⁷W	1/2+#
^167mRe	130(40)# keV			5.9(3) s	α (.7%)	¹⁶³Ta	1/2+#
¹⁶⁸Re	75	93	167.96157(3)	4.4(1) s	β⁺ (99.99%)	¹⁶⁸W	(5+, 6+, 7+)
¹⁶⁸Re	75	93	167.96157(3)	4.4(1) s	α (.005%)	¹⁶⁴Ta	(5+, 6+, 7+)
^168mRe	non-exist			6.6(15) s
¹⁶⁹Re	75	94	168.95879(3)	8.1(5) s	β⁺ (99.99%)	¹⁶⁹W	9/2−#
¹⁶⁹Re	75	94	168.95879(3)	8.1(5) s	α (.005%)	¹⁶⁵Ta	9/2−#
^169mRe	145(29) keV			15.1(15) s	β⁺ (99.8%)	¹⁶⁹W	1/2+#
^169mRe	145(29) keV			15.1(15) s	α (.2%)	¹⁶⁴Ta	1/2+#
¹⁷⁰Re	75	95	169.958220(28)	9.2(2) s	β⁺ (99.99%)	¹⁷⁰W	(5+)
¹⁷⁰Re	75	95	169.958220(28)	9.2(2) s	α (.01%)	¹⁶⁶Ta	(5+)
¹⁷¹Re	75	96	170.95572(3)	15.2(4) s	β⁺	¹⁷¹W	(9/2−)
¹⁷²Re	75	97	171.95542(6)	15(3) s	β⁺	¹⁷²W	(5)
^172mRe	0(100)# keV			55(5) s	β⁺	¹⁷²W	(2)
¹⁷³Re	75	98	172.95324(3)	1.98(26) min	β⁺	¹⁷³W	(5/2−)
¹⁷⁴Re	75	99	173.95312(3)	2.40(4) min	β⁺	¹⁷⁴W
¹⁷⁵Re	75	100	174.95138(3)	5.89(5) min	β⁺	¹⁷⁵W	(5/2−)
¹⁷⁶Re	75	101	175.95162(3)	5.3(3) min	β⁺	¹⁷⁶W	3+
¹⁷⁷Re	75	102	176.95033(3)	14(1) min	β⁺	¹⁷⁷W	5/2−
^177mRe	84.71(10) keV			50(10) μs			5/2+
¹⁷⁸Re	75	103	177.95099(3)	13.2(2) min	β⁺	¹⁷⁸W	(3+)
¹⁷⁹Re	75	104	178.949988(26)	19.5(1) min	β⁺	¹⁷⁹W	(5/2)+
^179m1Re	65.39(9) keV			95(25) μs			(5/2−)
^179m2Re	1684.59(14)+Y keV			>0.4 μs			(23/2+)
¹⁸⁰Re	75	105	179.950789(23)	2.44(6) min	β⁺	¹⁸⁰W	(1)−
¹⁸¹Re	75	106	180.950068(14)	19.9(7) h	β⁺	¹⁸¹W	5/2+
¹⁸²Re	75	107	181.95121(11)	64.0(5) h	β⁺	¹⁸²W	7+
^182m1Re	60(100) keV			12.7(2) h	β⁺	¹⁸²W	2+
^182m2Re	235.736(10)+X keV			585(21) ns			2−
^182m3Re	461.3(1)+X keV			0.78(9) μs			(4−)
¹⁸³Re	75	108	182.950820(9)	70.0(14) d	EC	¹⁸³W	5/2+
^183mRe	1907.6(3) keV			1.04(4) ms	IT	¹⁸³Re	(25/2+)
¹⁸⁴Re	75	109	183.952521(5)	35.4(7) d^[5]	β⁺	¹⁸⁴W	3(−)
^184mRe	188.01(4) keV			177.25(7) d^[5]	IT (75.4%)	¹⁸⁴Re	8(+)
^184mRe	188.01(4) keV			177.25(7) d^[5]	β⁺ (24.6%)	¹⁸⁴W	8(+)
¹⁸⁵Re	75	110	184.9529550(13)	Observationally Stable^{[n 10]}			5/2+	0.3740(2)
^185mRe	2124(2) keV			123(23) ns			(21/2)
¹⁸⁶Re	75	111	185.9549861(13)	3.7186(5) d	β⁻ (93.1%)	¹⁸⁶Os	1−
¹⁸⁶Re	75	111	185.9549861(13)	3.7186(5) d	EC (6.9%)	¹⁸⁶W	1−
^186mRe	149(7) keV			2.0(5)×10⁵ y	IT (90%)	¹⁸⁶Re	(8+)
^186mRe	149(7) keV			2.0(5)×10⁵ y	β⁻ (10%)	¹⁸⁶Os	(8+)
¹⁸⁷Re^{[n 11]}^{[n 12]}	75	112	186.9557531(15)	4.12(2)×10¹⁰ y^{[n 13]}	β⁻^{[n 14]}	¹⁸⁷Os	5/2+	0.6260(2)
¹⁸⁸Re	75	113	187.9581144(15)	17.0040(22) h	β⁻	¹⁸⁸Os	1−
^188mRe	172.069(9) keV			18.59(4) min	IT	¹⁸⁸Re	(6)−
¹⁸⁹Re	75	114	188.959229(9)	24.3(4) h	β⁻	¹⁸⁹Os	5/2+
¹⁹⁰Re	75	115	189.96182(16)	3.1(3) min	β⁻	¹⁹⁰Os	(2)−
^190mRe	210(50) keV			3.2(2) h	β⁻ (54.4%)	¹⁹⁰Os	(6−)
^190mRe	210(50) keV			3.2(2) h	IT (45.6%)	¹⁹⁰Re	(6−)
¹⁹¹Re	75	116	190.963125(11)	9.8(5) min	β⁻	¹⁹¹Os	(3/2+, 1/2+)
¹⁹²Re	75	117	191.96596(21)#	16(1) s	β⁻	¹⁹²Os
¹⁹³Re	75	118	192.96747(21)#	30# s [>300 ns]			5/2+#
¹⁹⁴Re	75	119	193.97042(32)#	2# s [>300 ns]
This table header & footer: view

^ ^mRe – Excited nuclear isomer.

^ ( ) – Uncertainty (1σ) is given in concise form in parentheses after the corresponding last digits.

^ # – Atomic mass marked #: value and uncertainty derived not from purely experimental data, but at least partly from trends from the Mass Surface (TMS).

^ Bold half-life – nearly stable, half-life longer than age of universe.

^ ^a ^b ^c # – Values marked # are not purely derived from experimental data, but at least partly from trends of neighboring nuclides (TNN).

^ Modes of decay:

EC:	Electron capture
IT:	Isomeric transition
p:	Proton emission

^ Bold italics symbol as daughter – Daughter product is nearly stable.

^ Bold symbol as daughter – Daughter product is stable.

^ ( ) spin value – Indicates spin with weak assignment arguments.

^ Believed to undergo α decay to ¹⁸¹Ta

^ primordial radionuclide

^ Used in rhenium–osmium dating

^ Can undergo Bound-state β⁻ decay with a half-life of 32.9 years when fully ionized

^ Theorized to also undergo α decay to ¹⁸³Ta

Rhenium-186[edit]

This section needs expansion with: Usage in medicine, ATC=V10. You can help by adding to it. (October 2019)

Radiopharmaceutical.

References[edit]

^ Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3): 030001. doi:10.1088/1674-1137/abddae.

^ "Standard Atomic Weights: Rhenium". CIAAW. 1973.

^ Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry. doi:10.1515/pac-2019-0603. ISSN 1365-3075.

^ Bosch, F.; Faestermann, T.; Friese, J.; et al. (1996). "Observation of bound-state β⁻ decay of fully ionized ¹⁸⁷Re: ¹⁸⁷Re-¹⁸⁷Os Cosmochronometry". Physical Review Letters. 77 (26): 5190–5193. Bibcode:1996PhRvL..77.5190B. doi:10.1103/PhysRevLett.77.5190. PMID 10062738.

^ ^a ^b ^c Janiak, Ł.; Gierlik, M.; R. Prokopowicz, G. Madejowski; Wronka, S.; Rzadkiewicz, J.; Carroll, J. J.; Chiara, C. J. (2022). "Half-life of the 188-keV isomer of ¹⁸⁴Re". Physical Review C. 106 (44303): 044303. Bibcode:2022PhRvC.106d4303J. doi:10.1103/PhysRevC.106.044303. S2CID 252792730.

^ Page, R. D.; Bianco, L.; Darby, I. G.; Uusitalo, J.; Joss, D. T.; Grahn, T.; Herzberg, R.-D.; Pakarinen, J.; Thomson, J.; Eeckhaudt, S.; Greenlees, P. T.; Jones, P. M.; Julin, R.; Juutinen, S.; Ketelhut, S.; Leino, M.; Leppänen, A.-P.; Nyman, M.; Rahkila, P.; Sarén, J.; Scholey, C.; Steer, A.; Hornillos, M. B. Gómez; Al-Khalili, J. S.; Cannon, A. J.; Stevenson, P. D.; Ertürk, S.; Gall, B.; Hadinia, B.; Venhart, M.; Simpson, J. (26 June 2007). "α decay of Re 159 and proton emission from Ta 155". Physical Review C. 75 (6): 061302. Bibcode:2007PhRvC..75f1302P. doi:10.1103/PhysRevC.75.061302. ISSN 0556-2813. Retrieved 12 June 2023.

^ Darby, I. G.; Page, R. D.; Joss, D. T.; Bianco, L.; Grahn, T.; Judson, D. S.; Simpson, J.; Eeckhaudt, S.; Greenlees, P. T.; Jones, P. M.; Julin, R.; Juutinen, S.; Ketelhut, S.; Leino, M.; Leppänen, A.-P.; Nyman, M.; Rahkila, P.; Sarén, J.; Scholey, C.; Steer, A. N.; Uusitalo, J.; Venhart, M.; Ertürk, S.; Gall, B.; Hadinia, B. (20 June 2011). "Precision measurements of proton emission from the ground states of Ta 156 and Re 160". Physical Review C. 83 (6): 064320. Bibcode:2011PhRvC..83f4320D. doi:10.1103/PhysRevC.83.064320. ISSN 0556-2813. Retrieved 21 June 2023.

^ Darby, I. G.; Page, R. D.; Joss, D. T.; Simpson, J.; Bianco, L.; Cooper, R. J.; Eeckhaudt, S.; Ertürk, S.; Gall, B.; Grahn, T.; Greenlees, P. T.; Hadinia, B.; Jones, P. M.; Judson, D. S.; Julin, R.; Juutinen, S.; Ketelhut, S.; Leino, M.; Leppänen, A. -P.; Nyman, M.; Rahkila, P.; Sarén, J.; Scholey, C.; Steer, A. N.; Uusitalo, J.; Venhart, M. (10 January 2011). "Decay of the high-spin isomer in 160Re: Changing single-particle structure beyond the proton drip line". Physics Letters B. 695 (1): 78–81. Bibcode:2011PhLB..695...78D. doi:10.1016/j.physletb.2010.10.052. ISSN 0370-2693.

Isotope masses from:
- Audi, Georges; Bersillon, Olivier; Blachot, Jean; Wapstra, Aaldert Hendrik (2003), "The NUBASE evaluation of nuclear and decay properties", Nuclear Physics A, 729: 3–128, Bibcode:2003NuPhA.729....3A, doi:10.1016/j.nuclphysa.2003.11.001
Isotopic compositions and standard atomic masses from:
- de Laeter, John Robert; Böhlke, John Karl; De Bièvre, Paul; Hidaka, Hiroshi; Peiser, H. Steffen; Rosman, Kevin J. R.; Taylor, Philip D. P. (2003). "Atomic weights of the elements. Review 2000 (IUPAC Technical Report)". Pure and Applied Chemistry. 75 (6): 683–800. doi:10.1351/pac200375060683.
- Wieser, Michael E. (2006). "Atomic weights of the elements 2005 (IUPAC Technical Report)". Pure and Applied Chemistry. 78 (11): 2051–2066. doi:10.1351/pac200678112051.
"News & Notices: Standard Atomic Weights Revised". International Union of Pure and Applied Chemistry. 19 October 2005.
Half-life, spin, and isomer data selected from the following sources.
- Audi, Georges; Bersillon, Olivier; Blachot, Jean; Wapstra, Aaldert Hendrik (2003), "The NUBASE evaluation of nuclear and decay properties", Nuclear Physics A, 729: 3–128, Bibcode:2003NuPhA.729....3A, doi:10.1016/j.nuclphysa.2003.11.001
- National Nuclear Data Center. "NuDat 2.x database". Brookhaven National Laboratory.
- Holden, Norman E. (2004). "11. Table of the Isotopes". In Lide, David R. (ed.). CRC Handbook of Chemistry and Physics (85th ed.). Boca Raton, Florida: CRC Press. ISBN 978-0-8493-0485-9.

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