Isotopes of indium

Isotopes of indium (₄₉In)
Standard atomic weight Ar°(In)
	114.818±0.001; 114.82±0.01 (abridged);
	view; talk; edit;

Indium (₄₉In) consists of two primordial nuclides, with the most common (~ 95.7%) nuclide (¹¹⁵In) being measurably though weakly radioactive. Its spin-forbidden decay has a half-life of 4.41×10¹⁴ years, much longer than the currently accepted age of the Universe.

The stable isotope ¹¹³In is only 4.3% of naturally occurring indium. Among elements with a known stable isotope, only tellurium and rhenium similarly occur with a stable isotope in lower abundance than the long-lived radioactive isotope. Other than ¹¹⁵In, the longest-lived radioisotope is ¹¹¹In, with a half-life of 2.8047 days. All other radioisotopes have half-lives less than a day. This element also has 47 isomers, the longest-lived being ^114m1In, with a half-life of 49.51 days. All other meta-states have half-lives less than a day, most less than an hour, and many measured in milliseconds or less.

Indium-111 is used medically in nuclear imaging, as a radiotracer nuclide tag for gamma camera localization of protein radiopharmaceuticals, such as In-111-labeled octreotide, which binds to receptors on certain endocrine tumors (Octreoscan).^[4] Indium-111 is also used in indium white blood cell scans, which use nuclear medical techniques to search for hidden infections.

Several proton-rich isotopes of indium (including indium-99) have been used to measure the mass of the doubly-magic isotope tin-100.^[5]^[6]

List of isotopes

Nuclide ^{[n 1]}	Z	N	Isotopic mass (Da) ^{[n 2]}^{[n 3]}	Half-life ^{[n 4]}	Decay mode ^{[n 5]}	Daughter isotope ^{[n 6]}^{[n 7]}	Spin and parity ^{[n 8]}^{[n 4]}	Natural abundance (mole fraction)
Nuclide ^{[n 1]}	Excitation energy^{[n 4]}			Half-life ^{[n 4]}	Decay mode ^{[n 5]}	Daughter isotope ^{[n 6]}^{[n 7]}	Spin and parity ^{[n 8]}^{[n 4]}	Normal proportion	Range of variation
⁹⁶In	49	47	95.95911(54)#	1# ms [>400 ns]	β⁺?	⁹⁶Cd	9/2+#
⁹⁶In	49	47	95.95911(54)#	1# ms [>400 ns]	p?	⁹⁵Cd	9/2+#
⁹⁷In	49	48	96.94913(43)#	36(6) ms	β⁺ (97.7%)	⁹⁷Cd	9/2+#
					β⁺, p (2.3%)	⁹⁶Ag
					p?	⁹⁶Cd
^97mIn	400(100)# keV			0.12(7) ms	p?	⁹⁶Cd	1/2−#
⁹⁸In	49	49	97.94213(33)#	30(1) ms	β⁺ (>99.87%)	⁹⁸Cd	(0+)
⁹⁸In	49	49	97.94213(33)#	30(1) ms	β⁺, p (<0.13%)	⁹⁷Ag	(0+)
^98mIn^{[n 9]}	820(730) keV			890(20) ms	β⁺ (56%)	⁹⁸Cd	(9+)
^98mIn^{[n 9]}	820(730) keV			890(20) ms	β⁺, p (44%)	⁹⁷Ag	(9+)
⁹⁹In	49	50	98.93411(32)#	3.11(6) s	β⁺ (99.71%)	⁹⁹Cd	9/2+#
⁹⁹In	49	50	98.93411(32)#	3.11(6) s	β⁺, p (0.29%)	⁹⁸Ag	9/2+#
¹⁰⁰In	49	51	99.9311019(24)	5.62(6) s	β⁺ (98.34%)	¹⁰⁰Cd	6+#
¹⁰⁰In	49	51	99.9311019(24)	5.62(6) s	β⁺, p (1.66%)	⁹⁹Ag	6+#
¹⁰¹In	49	52	100.926414(13)	15.1(11) s	β⁺ (>98.3%)	¹⁰¹Cd	(9/2+)
¹⁰¹In	49	52	100.926414(13)	15.1(11) s	β⁺, p (<1.7%)	¹⁰⁰Ag	(9/2+)
^101mIn	640(40) keV			10# s	β⁺?	¹⁰¹Cd	1/2−#
^101mIn	640(40) keV			10# s	IT?	¹⁰¹In	1/2−#
¹⁰²In	49	53	101.9241059(49)	23.3(1) s	β⁺ (99.99%)	¹⁰²Cd	(6+)
¹⁰²In	49	53	101.9241059(49)	23.3(1) s	β⁺, p (0.0093%)	¹⁰¹Ag	(6+)
¹⁰³In	49	54	102.9198788(96)	60(1) s	β⁺	¹⁰³Cd	(9/2+)
^103mIn	631.7(1) keV			34(2) s	β⁺ (67%)	¹⁰³Cd	(1/2−)
^103mIn	631.7(1) keV			34(2) s	IT (33%)	¹⁰³In	(1/2−)
¹⁰⁴In	49	55	103.9182145(62)	1.80(3) min	β⁺	¹⁰⁴Cd	(5+)
^104mIn	93.48(10) keV			15.7(5) s	IT (80%)	¹⁰⁴In	(3+)
^104mIn	93.48(10) keV			15.7(5) s	β⁺ (20%)	¹⁰⁴Cd	(3+)
¹⁰⁵In	49	56	104.914502(11)	5.07(7) min	β⁺	¹⁰⁵Cd	9/2+
^105mIn	674.09(25) keV			48(6) s	IT	¹⁰⁵In	(1/2)−
^105mIn	674.09(25) keV			48(6) s	β⁺?	¹⁰⁵Cd	(1/2)−
¹⁰⁶In	49	57	105.9134636(13)	6.2(1) min	β⁺	¹⁰⁶Cd	7+
^106mIn	28.6(3) keV			5.2(1) min	β⁺	¹⁰⁶Cd	(2)+
¹⁰⁷In	49	58	106.910287(10)	32.4(3) min	β⁺	¹⁰⁷Cd	9/2+
^107mIn	678.5(3) keV			50.4(6) s	IT	¹⁰⁷In	1/2−
¹⁰⁸In	49	59	107.9096937(93)	58.0(12) min	β⁺	¹⁰⁸Cd	7+
^108mIn	29.75(5) keV			39.6(7) min	β⁺	¹⁰⁸Cd	2+
¹⁰⁹In	49	60	108.9071497(43)	4.159(10) h	β⁺	¹⁰⁹Cd	9/2+
^109m1In	649.79(10) keV			1.34(6) min	IT	¹⁰⁹In	1/2−
^109m2In	2101.86(11) keV			210.0(9) ms	IT	¹⁰⁹In	19/2+
¹¹⁰In	49	61	109.907171(12)	4.92(8) h	β⁺	¹¹⁰Cd	7+
^110mIn	62.08(4) keV			69.1(5) min	β⁺	¹¹⁰Cd	2+
¹¹¹In^{[n 10]}	49	62	110.9051072(37)	2.8048(1) d	EC	¹¹¹Cd	9/2+
^111mIn	536.99(7) keV			7.7(2) min	IT	¹¹¹In	1/2−
¹¹²In	49	63	111.9055387(46)	14.88(15) min	β⁺ (62%)	¹¹²Cd	1+
¹¹²In	49	63	111.9055387(46)	14.88(15) min	β⁻ (38%)	¹¹²Sn	1+
^112m1In	156.592(25) keV			20.67(8) min	IT	¹¹²In	4+
^112m2In	350.80(5) keV			690(50) ns	IT	¹¹²In	(7)+
^112m3In	613.82(6) keV			2.81(3) μs	IT	¹¹²In	8−
¹¹³In^{[n 11]}	49	64	112.90406045(20)	Stable			9/2+	0.04281(52)
^113mIn	391.699(3) keV			1.6579(4) h	IT	¹¹³In	1/2−
¹¹⁴In	49	65	113.90491641(32)	71.9(1) s	β⁻ (99.50%)	¹¹⁴Sn	1+
¹¹⁴In	49	65	113.90491641(32)	71.9(1) s	β⁺ (0.50%)	¹¹⁴Cd	1+
^114m1In	190.2682(8) keV			49.51(1) d	IT (96.75%)	¹¹⁴In	5+
^114m1In	190.2682(8) keV			49.51(1) d	β⁺ (3.25%)	¹¹⁴Cd	5+
^114m2In	501.948(3) keV			43.1(6) ms	IT (96.75%)	^114m1In	8−
^114m2In	501.948(3) keV			43.1(6) ms	β⁺ (3.25%)	¹¹⁴Cd	8−
¹¹⁵In^{[n 11]}^{[n 12]}	49	66	114.903878772(12)	4.41(25)×10¹⁴ a	β⁻	¹¹⁵Sn	9/2+	0.95.719(52)
^115mIn	336.244(17) keV			4.486(4) h	IT (95.0%)	¹¹⁵In	1/2−
^115mIn	336.244(17) keV			4.486(4) h	β⁻ (5.0%)	¹¹⁵Sn	1/2−
¹¹⁶In	49	67	115.90525999(24)	14.10(3) s	β⁻ (99.98%)	¹¹⁶Sn	1+
¹¹⁶In	49	67	115.90525999(24)	14.10(3) s	EC (0.0237%)	¹¹⁶Cd	1+
^116m1In	127.267(6) keV			54.29(17) min	β⁻	¹¹⁶Sn	5+
^116m2In	289.660(6) keV			2.18(4) s	IT	^116m1In	8−
¹¹⁷In	49	68	116.9045157(52)	43.2(3) min	β⁻	¹¹⁷Sn	9/2+
^117mIn	315.303(11) keV			116.2(3) min	β⁻ (52.9%)	¹¹⁷Sn	1/2−
^117mIn	315.303(11) keV			116.2(3) min	IT (47.1%)	¹¹⁷In	1/2−
¹¹⁸In	49	69	117.9063567(83)	5.0(5) s	β⁻	¹¹⁸Sn	1+
^118m1In^{[n 9]}	100(50)# keV			4.364(7) min	β⁻	¹¹⁸Sn	5+
^118m2In	240(50)# keV			8.5(3) s	IT (98.6%)	^118m1In	8−
^118m2In	240(50)# keV			8.5(3) s	β⁻ (1.4%)	¹¹⁸Sn	8−
¹¹⁹In	49	70	118.9058516(78)	2.4(1) min	β⁻	¹¹⁹Sn	9/2+
^119m1In	311.37(3) keV			18.0(3) min	β⁻ (97.4%)	¹¹⁹Sn	1/2−
^119m1In	311.37(3) keV			18.0(3) min	IT (2.6%)	¹¹⁹In	1/2−
^119m2In	654.27(7) keV			130(15) ns	IT	¹¹⁹In	(3/2)+
^119m3In	2656.9(18) keV			265(10) ns	IT	¹¹⁹In	(25/2+)
¹²⁰In	49	71	119.907967(43)	3.08(8) s	β⁻	¹²⁰Sn	1+
^120m1In^{[n 9]}	50(60)# keV			46.2(8) s	β⁻	¹²⁰Sn	5+
^120m2In^{[n 9]}	300(200)# keV			47.3(5) s	β⁻	¹²⁰Sn	8−
¹²¹In	49	72	120.907853(29)	23.1(6) s	β⁻	¹²¹Sn	9/2+
^121m1In	313.68(7) keV			3.88(10) min	β⁻ (98.8%)	¹²¹Sn	1/2−
^121m1In	313.68(7) keV			3.88(10) min	IT (1.2%)	¹²¹In	1/2−
^121m2In	2550(100)# keV			7.3(2) μs	IT	¹²¹In	(25/2+)
¹²²In	49	73	121.910282(54)	1.5(3) s	β⁻	¹²²Sn	1+
^122m1In^{[n 9]}	40(60)# keV			10.3(6) s	β⁻	¹²²Sn	5+
^122m2In	290(140) keV			10.8(4) s	β⁻	¹²²Sn	8−
¹²³In	49	74	122.910435(21)	6.17(5) s	β⁻	^123mSn	9/2+
^123m1In	327.21(4) keV			47.4(4) s	β⁻	¹²³Sn	1/2−
^123m2In	2078.1(6) keV			1.4(2) μs	IT	¹²³In	(17/2−)
^123m3In	2103(14)# keV			>100 μs	IT	¹²³In	(21/2−)
¹²⁴In	49	75	123.913185(33)	3.12(9) s	β⁻	¹²⁴Sn	3+
^124mIn^{[n 9]}	−20(60) keV			3.67(03) s	β⁻	¹²⁴Sn	8−
^124mIn^{[n 9]}	−20(60) keV			3.67(03) s	IT?	¹²⁴In	8−
¹²⁵In	49	76	124.9136738(19)	2.36(4) s	β⁻	^125mSn	9/2+
^125m1In	352(12) keV			12.2(2) s	β⁻	¹²⁵Sn	1/2−
^125m2In	2009.4(7) keV			9.4(6) μs	IT	¹²⁵In	(19/2+)
^125m3In	2161.2(9) keV			5.0(15) ms	IT	¹²⁵In	(23/2−)
¹²⁶In	49	77	125.9164682(45)	1.53(1) s	β⁻	¹²⁶Sn	3+
^126m1In	90(7) keV			1.64(5) s	β⁻	¹²⁶Sn	8−
^126m2In	243.3(2) keV			22(2) μs	IT	¹²⁶In	1−
¹²⁷In	49	78	126.9174539(14)^[7]	1.086(7) s	β⁻ (>99.97%)	^127mSn	9/2+
¹²⁷In	49	78	126.9174539(14)^[7]	1.086(7) s	β⁻, n (<0.03%)	¹²⁶Sn	9/2+
^127m1In	407.9(50) keV^[7]			3.618(21) s	β⁻ (99.30%)	^127mSn	1/2−#
^127m1In	407.9(50) keV^[7]			3.618(21) s	β⁻, n (0.70%)	¹²⁶Sn	1/2−#
^127m2In	1728.7(12) keV^[7]			1.04(10) s	β⁻	^127mSn	(21/2−)
^127m2In	1728.7(12) keV^[7]			1.04(10) s	β⁻, n?	¹²⁶Sn	(21/2−)
^127m3In	2364.7(9) keV			9(2) μs	IT	¹²⁷In	(29/2+)
¹²⁸In	49	79	127.9203536(14)	816(27) ms	β⁻ (99.96%)	¹²⁸Sn	(3)+
¹²⁸In	49	79	127.9203536(14)	816(27) ms	β⁻, n (0.038%)	¹²⁷Sn	(3)+
^128m1In	247.87(10) keV			23(2) μs	IT	¹²⁸In	(1)−
^128m2In	285.1(22) keV			720(100) ms	β⁻	¹²⁸Sn	(8−)
					IT?	¹²⁸In
					β⁻, n?	¹²⁷Sn
^128m3In	1797.6(16) keV			>0.3 s	β⁻	¹²⁸Sn	(16+)
					IT?	¹²⁸In
					β⁻, n?	¹²⁷Sn
¹²⁹In	49	80	128.9218085(21)	570(10) ms	β⁻ (99.77%)	¹²⁹Sn	9/2+
¹²⁹In	49	80	128.9218085(21)	570(10) ms	β⁻, n (0.23%)	¹²⁸Sn	9/2+
^129m1In	449.1(59) keV^[7]			1.23(3) s	β⁻ (96.2%)	¹²⁹Sn	1/2−
					β⁻, n (3.6%)	¹²⁸Sn
					IT?	¹²⁹In
^129m2In	1646.6(33) keV^[7]			670(100) ms	β⁻	¹²⁹Sn	(23/2−)
^129m2In	1646.6(33) keV^[7]			670(100) ms	IT?	¹²⁹In	(23/2−)
^129m3In	1687.97(25) keV			11.2(2) μs	IT	¹²⁹In	(17/2−)
^129m4In	1927.6(33) keV^[7]			110(15) ms	IT	¹²⁹In	(29/2+)
^129m4In	1927.6(33) keV^[7]			110(15) ms	β⁻?	¹²⁹Sn	(29/2+)
¹³⁰In	49	81	129.9249523(19)	273(5) ms	β⁻ (99.07%)	¹³⁰Sn	1(−)
¹³⁰In	49	81	129.9249523(19)	273(5) ms	β⁻, n (0.93%)	¹²⁹Sn	1(−)
^130m1In^{[n 9]}	66.5(27) keV			540(10) ms	β⁻ (98.20%)	¹³⁰Sn	(10-)
^130m1In^{[n 9]}	66.5(27) keV			540(10) ms	β⁻, n (1.80%)	¹²⁹Sn	(10-)
^130m2In	385.4(26) keV			540(10) ms	β⁻ (98.20%)	¹³⁰Sn	(5+)
^130m2In	385.4(26) keV			540(10) ms	β⁻, n (1.80%)	¹²⁹Sn	(5+)
^130m3In	388.3(2) keV			4.6(2) μs	IT	¹³⁰In	(3+)
¹³¹In	49	82	130.9269728(24)	261.5(28) ms	β⁻ (97.75%)	¹³¹Sn	9/2+
¹³¹In	49	82	130.9269728(24)	261.5(28) ms	β⁻, n (2.25%)	¹³⁰Sn	9/2+
^131m1In	376(3) keV			328(15) ms	β⁻ (97.75%)	¹³¹Sn	1/2−
					β⁻, n (2.25%)	¹³⁰Sn
					IT?	¹³¹In
^131m2In	3750(90) keV			322(41) ms	β⁻ (88%)	¹³¹Sn	(21/2+)
					β⁻, n (12%)	¹³⁰Sn
					IT?	¹²⁹Sn
^131m3In	3783.6(5) keV			669(34) ns	IT	¹³¹In	(17/2+)
¹³²In	49	83	131.932998(64)	202.2(2) ms	β⁻ (87.7%)	¹³²Sn	(7−)
					β⁻, n (12.3%)	¹³¹Sn
					β⁻, 2n?	¹³⁰Sn
¹³³In	49	84	132.93807(22)#	163.0(16) ms	β⁻, n (85%)	¹³²Sn	(9/2+)
					β⁻ (15%)	¹³³Sn
					β⁻, 2n?	¹³¹Sn
^133mIn	330(40)# keV			167(11) ms	β⁻, n (93%)	¹³²Sn	(1/2−)
^133mIn	330(40)# keV			167(11) ms	β⁻ (7%)	¹³³Sn	(1/2−)
¹³⁴In	49	85	133.94421(22)#	140(4) ms	β⁻, n (65%)	¹³³Sn	7−#
					β⁻?	¹³⁴Sn
					β⁻, 2n (<4%)	¹³²Sn
^134mIn	56.7(1) keV			3.5(4) μs	IT	¹³⁴In	(5−)
¹³⁵In	49	86	134.94943(32)#	103(3) ms	β⁻	¹³⁵Sn	9/2+#
					β⁻, n?	¹³⁴Sn
					β⁻, 2n?	¹³³Sn
¹³⁶In	49	87	135.95602(32)#	86(9) ms	β⁻	¹³⁶Sn	7−#
					β⁻, n?	¹³⁵Sn
					β⁻, 2n?	¹³⁴Sn
¹³⁷In	49	88	136.96154(43)#	70(40) ms	β⁻	¹³⁷Sn	9/2+#
					β⁻, n?	¹³⁶Sn
					β⁻, 2n?	¹³⁵Sn
This table header & footer: view

^ ^mIn – 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).
^ ^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

n: Neutron emission

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.
^ ^a ^b ^c ^d ^e ^f ^g Order of ground state and isomer is uncertain.
^ Used in medical applications
^ ^a ^b Fission product
^ Primordial radionuclide

References

^ 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: Indium". CIAAW. 2011.
^ 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.
^ "Octreoscan review". Medscape.
^ "Precision mass measurements of indium isotopes allow conclusions on the mass of the doubly-magic atomic nucleus of tin-100". GSI. 13 June 2012. Retrieved 2023-09-10.
^ "Tin 100 probed by studying its neighboring isotopes, indium 99 and 101 – IJCLab". Retrieved 2023-09-10.
^ ^a ^b ^c ^d ^e ^f Jaries, A.; Stryjczyk, M.; Kankainen, A.; Ayoubi, L. Al; Beliuskina, O.; Canete, L.; de Groote, R. P.; Delafosse, C.; Delahaye, P.; Eronen, T.; Flayol, M.; Ge, Z.; Geldhof, S.; Gins, W.; Hukkanen, M.; Imgram, P.; Kahl, D.; Kostensalo, J.; Kujanpää, S.; Kumar, D.; Moore, I. D.; Mougeot, M.; Nesterenko, D. A.; Nikas, S.; Patel, D.; Penttilä, H.; Pitman-Weymouth, D.; Pohjalainen, I.; Raggio, A.; Ramalho, M.; Reponen, M.; Rinta-Antila, S.; de Roubin, A.; Ruotsalainen, J.; Srivastava, P. C.; Suhonen, J.; Vilen, M.; Virtanen, V.; Zadvornaya, A. "Physical Review C - Accepted Paper: Isomeric states of fission fragments explored via Penning trap mass spectrometry at IGISOL". journals.aps.org. arXiv:2403.04710.

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.

Isotopes of indium

List of isotopes

References

Suggest as cover photo

Thank you for helping!

Install Wikiwand

Don't forget to rate us

Tell your friends about Wikiwand!

Enjoying Wikiwand?

Tell your friends and spread the love:

Your preferred languages

All languages

Follow Us

Don't forget to rate us

Our magic isn't perfect

Thank you for helping!

Oh no, there's been an error

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