Login
Login

Isotopes of yttrium

{{Short description|none}}

{{Infobox yttrium isotopes}}

Natural yttrium (39Y) is composed of a single isotope, yttrium-89. The most stable radioisotopes are 88Y, which has a half-life of 106.6 days, and 91Y, with a half-life of 58.51 days. All the other isotopes have half-lives of less than a day, except 87Y, which has a half-life of 79.8 hours, and 90Y, with 64 hours. The dominant decay mode below the stable 89Y is electron capture and the dominant mode after it is beta emission. Isotopes characterized range from 76Y to 109Y.

In products of nuclear fission, 90Y exists in equilibrium with its parent isotope strontium-90.

List of isotopes

{{Anchor|Yttrium-75}}

{{Isotopes table

|symbol=Y

|refs=NUBASE2020, AME2020 II

|notes=m, unc(), mass#, exen#, hl#, spin(), spin#, daughter-st, daughter-nst, IT, n, p

}}

|-id=Yttrium-76

| rowspan=3|76Y

| rowspan=3 style="text-align:right" | 39

| rowspan=3 style="text-align:right" | 37

| rowspan=3|75.95894(32)#

| rowspan=3|28(9) ms

| β+?

| 76Sr

| rowspan=3|1−#

| rowspan=3|

|-

| p?

| 75Sr

|-

| β+, p?

| 75Rb

|-id=Yttrium-77

| rowspan=3|77Y

| rowspan=3 style="text-align:right" | 39

| rowspan=3 style="text-align:right" | 38

| rowspan=3|76.95015(22)#

| rowspan=3|63(17) ms

| β+

| 77Sr

| rowspan=3|5/2+#

| rowspan=3|

|-

| p?

| 76Sr

|-

| β+, p?

| 76Rb

|-id=Yttrium-78

| rowspan=2|78Y

| rowspan=2 style="text-align:right" | 39

| rowspan=2 style="text-align:right" | 39

| rowspan=2|77.94399(32)#

| rowspan=2|54(5) ms

| β+

| 78Sr

| rowspan=2|(0+)

| rowspan=2|

|-

| β+, p?

| 77Rb

|-id=Yttrium-78m

| rowspan=2 style="text-indent:1em" | 78mYOrder of ground state and isomer is uncertain.

| rowspan=2 colspan="3" style="text-indent:2em" | 0(500)# keV

| rowspan=2|5.8(6) s

| β+

| 78Sr

| rowspan=2|(5+)

| rowspan=2|

|-

| β+, p?

| 77Rb

|-id=Yttrium-79

| 79Y

| style="text-align:right" | 39

| style="text-align:right" | 40

| 78.937946(86)

| 14.8(6) s

| β+

| 79Sr

| 5/2+#

|

|-id=Yttrium-80

| 80Y

| style="text-align:right" | 39

| style="text-align:right" | 41

| 79.9343548(67)

| 30.1(5) s

| β+

| 80Sr

| 4−

|

|-id=Yttrium-80m1

| rowspan=2 style="text-indent:1em" | 80m1Y

| rowspan=2 colspan="3" style="text-indent:2em" | 228.5(1) keV

| rowspan=2|4.8(3) s

| IT (81%)

| 80Y

| rowspan=2|1−

| rowspan=2|

|-

| β+ (19%)

| 80Sr

|-id=Yttrium-80m2

| style="text-indent:1em" | 80m2Y

| colspan="3" style="text-indent:2em" | 312.6(9) keV

| 4.7(3) μs

| IT

| 80Y

| (2+)

|

|-id=Yttrium-81

| 81Y

| style="text-align:right" | 39

| style="text-align:right" | 42

| 80.9294543(58)

| 70.4(10) s

| β+

| 81Sr

| (5/2+)

|

|-id=Yttrium-82

| 82Y

| style="text-align:right" | 39

| style="text-align:right" | 43

| 81.9269302(59)

| 8.30(20) s

| β+

| 82Sr

| 1+

|

|-id=Yttrium-82m1

| style="text-indent:1em" | 82m1Y

| colspan="3" style="text-indent:2em" | 402.63(14) keV

| 258(22) ns

| IT

| 82Y

| 4−

|

|-id=Yttrium-82m2

| style="text-indent:1em" | 82m2Y

| colspan="3" style="text-indent:2em" | 507.50(13) keV

| 148(6) ns

| IT

| 82Y

| 6+

|

|-id=Yttrium-83

| 83Y

| style="text-align:right" | 39

| style="text-align:right" | 44

| 82.922484(20)

| 7.08(8) min

| β+

| 83Sr

| (9/2+)

|

|-id=Yttrium-83m

| rowspan=2 style="text-indent:1em" | 83mY

| rowspan=2 colspan="3" style="text-indent:2em" | 62.04(10) keV

| rowspan=2|2.85(2) min

| β+ (60%)

| 83Sr

| rowspan=2|(3/2−)

| rowspan=2|

|-

| IT (40%)

| 83Y

|-id=Yttrium-84

| 84Y

| style="text-align:right" | 39

| style="text-align:right" | 45

| 83.9206711(46)

| 39.5(8) min

| β+

| 84Sr

| (6+)

|

|-id=Yttrium-84m1

| style="text-indent:1em" | 84m1Y

| colspan="3" style="text-indent:2em" | 67.0(2) keV

| 4.6(2) s

| β+

| 84Sr

| 1+

|

|-id=Yttrium-84m2

| style="text-indent:1em" | 84m2Y

| colspan="3" style="text-indent:2em" | 210.42(16) keV

| 292(10) ns

| IT

| 84Y

| 4−

|

|-id=Yttrium-85

| 85Y

| style="text-align:right" | 39

| style="text-align:right" | 46

| 84.916433(20)

| 2.68(5) h

| β+

| 85Sr

| (1/2)−

|

|-id=Yttrium-85m1

| rowspan=2 style="text-indent:1em" | 85m1Y

| rowspan=2 colspan="3" style="text-indent:2em" | 19.68(17) keV

| rowspan=2|4.86(20) h

| β+

| 85Sr

| rowspan=2|(9/2)+

| rowspan=2|

|-

| IT?

| 85Y

|-id=Yttrium-85m2

| style="text-indent:1em" | 85m2Y

| colspan="3" style="text-indent:2em" | 266.18(10) keV

| 178(7) ns

| IT

| 85Y

| (5/2)−

|

|-id=Yttrium-86

| 86Y

| style="text-align:right" | 39

| style="text-align:right" | 47

| 85.914886(15)

| 14.74(2) h

| β+

| 86Sr

| 4−

|

|-id=Yttrium-86m1

| rowspan=2 style="text-indent:1em" | 86m1Y

| rowspan=2 colspan="3" style="text-indent:2em" | 218.21(9) keV

| rowspan=2|47.4(4) min

| IT (99.31%)

| 86Y

| rowspan=2|(8+)

| rowspan=2|

|-

| β+ (0.69%)

| 86Sr

|-id=Yttrium-86m2

| style="text-indent:1em" | 86m2Y

| colspan="3" style="text-indent:2em" | 302.18(9) keV

| 125.3(55) ns

| IT

| 86Y

| 6+

|

|-id=Yttrium-87

| 87Y

| style="text-align:right" | 39

| style="text-align:right" | 48

| 86.9108761(12)

| 79.8(3) h

| β+

| 87Sr

| 1/2−

|

|-id=Yttrium-87m

| rowspan=2 style="text-indent:1em" | 87mY

| rowspan=2 colspan="3" style="text-indent:2em" | 380.82(7) keV

| rowspan=2|13.37(3) h

| IT (98.43%)

| 87Y

| rowspan=2|9/2+

| rowspan=2|

|-

| β+ (1.57%)

| 87Sr

|-id=Yttrium-88

| 88Y

| style="text-align:right" | 39

| style="text-align:right" | 49

| 87.9095013(16)

| 106.629(24) d

| β+

| 88Sr

| 4−

|

|-id=Yttrium-88m1

| style="text-indent:1em" | 88m1Y

| colspan="3" style="text-indent:2em" | 392.86(9) keV

| 301(3) μs

| IT

| 88Y

| 1+

|

|-id=Yttrium-88m2

| style="text-indent:1em" | 88m2Y

| colspan="3" style="text-indent:2em" | 674.55(4) keV

| 13.98(17) ms

| IT

| 88Y

| 8+

|

|-id=Yttrium-89

| 89YFission product

| style="text-align:right" | 39

| style="text-align:right" | 50

| 88.90583816(36)

| colspan=3 align=center|Stable

| 1/2−

| 1.0000

|-id=Yttrium-89m

| style="text-indent:1em" | 89mY

| colspan="3" style="text-indent:2em" | 908.97(3) keV

| 15.663(5) s

| IT

| 89Y

| 9/2+

|

|-

| 90Y

| style="text-align:right" | 39

| style="text-align:right" | 51

| 89.90714175(38)

| 64.05(5) h

| β−

| 90Zr

| 2−

|

|-id=Yttrium-90m

| rowspan=2 style="text-indent:1em" | 90mY

| rowspan=2 colspan="3" style="text-indent:2em" | 682.01(5) keV

| rowspan=2|3.226(11) h

| IT

| 90Y

| rowspan=2|7+

| rowspan=2|

|-

| β− (0.0018%)

| 90Zr

|-id=Yttrium-91

| 91Y

| style="text-align:right" | 39

| style="text-align:right" | 52

| 90.9072980(20)

| 58.51(6) d

| β−

| 91Zr

| 1/2−

|

|-id=Yttrium-91m

| rowspan=2 style="text-indent:1em" | 91mY

| rowspan=2 colspan="3" style="text-indent:2em" | 555.58(5) keV

| rowspan=2|49.71(4) min

| IT

| 91Y

| rowspan=2|9/2+

| rowspan=2|

|-

| β−?

| 91Zr

|-id=Yttrium-92

| 92Y

| style="text-align:right" | 39

| style="text-align:right" | 53

| 91.9089458(98)

| 3.54(1) h

| β−

| 92Zr

| 2−

|

|-id=Yttrium-92m

| style="text-indent:1em" | 92mY

| colspan="3" style="text-indent:2em" | 807(50)# keV

| 3.7(5) μs

| IT

| 92Y

| 7+#

|

|-id=Yttrium-93

| 93Y

| style="text-align:right" | 39

| style="text-align:right" | 54

| 92.909578(11)

| 10.18(8) h

| β−

| 93Zr

| 1/2−

|

|-id=Yttrium-93m

| style="text-indent:1em" | 93mY

| colspan="3" style="text-indent:2em" | 758.719(21) keV

| 820(40) ms

| IT

| 93Y

| 9/2+

|

|-id=Yttrium-94

| 94Y

| style="text-align:right" | 39

| style="text-align:right" | 55

| 93.9115921(68)

| 18.7(1) min

| β−

| 94Zr

| 2−

|

|-id=Yttrium-94m

| style="text-indent:1em" | 94mY

| colspan="3" style="text-indent:2em" | 1202.3(10) keV

| 1.304(12) μs

| IT

| 94Y

| (5+)

|

|-id=Yttrium-95

| 95Y

| style="text-align:right" | 39

| style="text-align:right" | 56

| 94.9128197(73)

| 10.3(1) min

| β−

| 95Zr

| 1/2−

|

|-id=Yttrium-95m

| style="text-indent:1em" | 95mY

| colspan="3" style="text-indent:2em" | 1087.6(6) keV

| 48.6(5) μs

| IT

| 95Y

| 9/2+

|

|-id=Yttrium-96

| 96Y

| style="text-align:right" | 39

| style="text-align:right" | 57

| 95.9159093(65)

| 5.34(5) s

| β−

| 96Zr

| 0−

|

|-id=Yttrium-96m1

| style="text-indent:1em" | 96m1Y

| colspan="3" style="text-indent:2em" | 1540(9) keV

| 9.6(2) s

| β−

| 96Zr

| 8+

|

|-id=Yttrium-96m2

| style="text-indent:1em" | 96m2Y

| colspan="3" style="text-indent:2em" | 1655.0(11) keV

| 181(9) ns

| IT

| 96Y

| (6+)

|

|-id=Yttrium-97

| rowspan=2|97Y

| rowspan=2 style="text-align:right" | 39

| rowspan=2 style="text-align:right" | 58

| rowspan=2|96.9182867(72)

| rowspan=2|3.75(3) s

| β− (99.945%)

| 97Zr

| rowspan=2|1/2−

| rowspan=2|

|-

| β−, n (0.055%)

| 96Zr

|-id=Yttrium-97m1

| rowspan=3 style="text-indent:1em" | 97m1Y

| rowspan=3 colspan="3" style="text-indent:2em" | 667.52(23) keV

| rowspan=3|1.17(3) s

| β− (>99.2%)

| 97Zr

| rowspan=3|9/2+

| rowspan=3|

|-

| IT (<0.7%)

| 97Y

|-

| β−, n (0.11%)

| 96Zr

|-id=Yttrium-97m2

| rowspan=2 style="text-indent:1em" | 97m2Y

| rowspan=2 colspan="3" style="text-indent:2em" | 3522.6(4) keV

| rowspan=2|142(8) ms

| IT (94.8%)

| 97Y

| rowspan=2|(27/2−)

| rowspan=2|

|-

| β− (5.2%)

| 97Zr

|-id=Yttrium-98

| rowspan=2|98Y

| rowspan=2 style="text-align:right" | 39

| rowspan=2 style="text-align:right" | 59

| rowspan=2|97.9223948(85)

| rowspan=2|548(2) ms

| β− (99.67%)

| 98Zr

| rowspan=2|0−

| rowspan=2|

|-

| β−, n (0.33%)

| 97Zr

|-id=Yttrium-98m1

| style="text-indent:1em" | 98m1Y

| colspan="3" style="text-indent:2em" | 170.78(5) keV

| 615(8) ns

| IT

| 98Y

| 2−

|

|-id=Yttrium-98m2

| rowspan=3 style="text-indent:1em" | 98m2Y

| rowspan=3 colspan="3" style="text-indent:2em" | 465.7(7) keV

| rowspan=3|2.32(8) s

| β− (96.56%)

| 98Zr

| rowspan=3|(6,7)+

| rowspan=3|

|-

| β−, n (3.44%)

| 97Zr

|-

| IT?

| 98Y

|-id=Yttrium-98m3

| style="text-indent:1em" | 98m3Y

| colspan="3" style="text-indent:2em" | 496.10(11) keV

| 6.90(54) μs

| IT

| 98Y

| (4)−

|

|-id=Yttrium-98m4

| style="text-indent:1em" | 98m4Y

| colspan="3" style="text-indent:2em" | 594(10) keV

| 180(7) ns

| IT

| 98Y

| (3−,4−)

|

|-id=Yttrium-98m5

| style="text-indent:1em" | 98m5Y

| colspan="3" style="text-indent:2em" | 972.17(20) keV

| 450(150) ns

| IT

| 98Y

| (8+)

|

|-id=Yttrium-98m6

| style="text-indent:1em" | 98m6Y

| colspan="3" style="text-indent:2em" | 1181.50(18) keV

| 762(14) ns

| IT

| 98Y

| (10−)

|

|-id=Yttrium-99

| rowspan=2|99Y

| rowspan=2 style="text-align:right" | 39

| rowspan=2 style="text-align:right" | 60

| rowspan=2|98.9241608(71)

| rowspan=2|1.484(7) s

| β− (98.23%)

| 99Zr

| rowspan=2|5/2+

| rowspan=2|

|-

| β−, n (1.77%)

| 98Zr

|-id=Yttrium-99m

| style="text-indent:1em" | 99mY

| colspan="3" style="text-indent:2em" | 2141.65(19) keV

| 8.2(4) μs

| IT

| 99Y

| (17/2+)

|

|-id=Yttrium-100

| rowspan=2|100Y

| rowspan=2 style="text-align:right" | 39

| rowspan=2 style="text-align:right" | 61

| rowspan=2|99.927728(12)

| rowspan=2|940(30) ms

| β−

| 100Zr

| rowspan=2|4+

| rowspan=2|

|-

| β−, n?

| 99Zr

|-id=Yttrium-100m

| rowspan=2 style="text-indent:1em" | 100mY

| rowspan=2 colspan="3" style="text-indent:2em" | 144(16) keV

| rowspan=2|727(6) ms

| β− (98.92%)

| 100Zr

| rowspan=2|1+#

| rowspan=2|

|-

| β−, n (1.08%)

| 99Zr

|-id=Yttrium-101

| rowspan=2|101Y

| rowspan=2 style="text-align:right" | 39

| rowspan=2 style="text-align:right" | 62

| rowspan=2|100.9301608(76)

| rowspan=2|426(20) ms

| β− (97.7%)

| 101Zr

| rowspan=2|5/2+

| rowspan=2|

|-

| β−, n (2.3%)

| 100Zr

|-id=Yttrium-101m

| style="text-indent:1em" | 101mY

| colspan="3" style="text-indent:2em" | 1205.0(10) keV

| 870(90) ns

| IT

| 101Y

| 13/2−#

|

|-id=Yttrium-102

| rowspan=2|102Y

| rowspan=2 style="text-align:right" | 39

| rowspan=2 style="text-align:right" | 63

| rowspan=2|101.9343285(44)

| rowspan=2|360(40) ms

| β− (>97.4%)

| 102Zr

| rowspan=2|(5−)

| rowspan=2|

|-

| β−, n (<2.6%)

| 101Zr

|-id=Yttrium-102m

| rowspan=3 style="text-indent:1em" | 102mY

| rowspan=3 colspan="3" style="text-indent:2em" | 100(100)# keV

| rowspan=3|300(100) ms

| β− (>97.4%)

| 102Zr

| rowspan=3|(0−,1−)

| rowspan=3|

|-

| β−, n (<2.6%)

| 101Zr

|-

| IT?

| 102Y

|-id=Yttrium-103

| rowspan=2|103Y

| rowspan=2 style="text-align:right" | 39

| rowspan=2 style="text-align:right" | 64

| rowspan=2|102.937244(12)

| rowspan=2|239(12) ms

| β− (92.0%)

| 103Zr

| rowspan=2|5/2+#

| rowspan=2|

|-

| β−, n (8.0%)

| 102Zr

|-id=Yttrium-104

| rowspan=3|104Y

| rowspan=3 style="text-align:right" | 39

| rowspan=3 style="text-align:right" | 65

| rowspan=3|103.94194(22)#

| rowspan=3|197(4) ms

| β− (66%)

| 104Zr

| rowspan=3|(0+,1+)#

| rowspan=3|

|-

| β−, n (34%)

| 103Zr

|-

| β−, 2n?

| 102Zr

|-id=Yttrium-105

| rowspan=3|105Y

| rowspan=3 style="text-align:right" | 39

| rowspan=3 style="text-align:right" | 66

| rowspan=3|104.94571(43)#

| rowspan=3|95(9) ms

| β−

| 105Zr

| rowspan=3|5/2+#

| rowspan=3|

|-

| β−, n (<82%)

| 104Zr

|-

| β−, 2n?

| 103Zr

|-id=Yttrium-106

| rowspan=3|106Y

| rowspan=3 style="text-align:right" | 39

| rowspan=3 style="text-align:right" | 67

| rowspan=3|105.95084(54)#

| rowspan=3|75(6) ms

| β−

| 106Zr

| rowspan=3|2+#

| rowspan=3|

|-

| β−, n?

| 105Zr

|-

| β−, 2n?

| 104Zr

|-id=Yttrium-107

| rowspan=3|107Y

| rowspan=3 style="text-align:right" | 39

| rowspan=3 style="text-align:right" | 68

| rowspan=3|106.95494(54)#

| rowspan=3|33.5(3) ms

| β−

| 107Zr

| rowspan=3|5/2+#

| rowspan=3|

|-

| β−, n?

| 106Zr

|-

| β−, 2n?

| 105Zr

|-id=Yttrium-108

| rowspan=3|108Y

| rowspan=3 style="text-align:right" | 39

| rowspan=3 style="text-align:right" | 69

| rowspan=3|107.96052(64)#

| rowspan=3|30(5) ms

| β−

| 108Zr

| rowspan=3|6−#

| rowspan=3|

|-

| β−, n?

| 107Zr

|-

| β−, 2n?

| 106Zr

|-id=Yttrium-109

| rowspan=3|109Y

| rowspan=3 style="text-align:right" | 39

| rowspan=3 style="text-align:right" | 70

| rowspan=3|108.96513(75)#

| rowspan=3|25(5) ms

| β−

| 109Zr

| rowspan=3|5/2+#

| rowspan=3|

|-

| β−, n?

| 108Zr

|-

| β−, 2n?

| 107Zr

|-id=Yttrium-110

| 110Y{{cite journal|title=Observation of new neutron-rich isotopes in the vicinity of 110Zr|url=https://journals.aps.org/prc/abstract/10.1103/PhysRevC.103.014614|first1=T.|last1=Sumikama|journal=Physical Review C |display-authors=et al.|date=2021|volume=103 |issue=1 |page=014614 |doi=10.1103/PhysRevC.103.014614 |bibcode=2021PhRvC.103a4614S |hdl=10261/260248 |s2cid=234019083 |hdl-access=free }}

| style="text-align:right" | 39

| style="text-align:right" | 71

|

|

|

|

|

|

|-id=Yttrium-111

| 111Y

| style="text-align:right" | 39

| style="text-align:right" | 72

|

|

|

|

|

|

{{Isotopes table/footer}}

See also

Daughter products other than yttrium

References

{{Reflist}}

  • Isotope masses from:
  • {{NUBASE 2003}}
  • Half-life, spin, and isomer data selected from the following sources.
  • {{NUBASE 2003}}
  • {{NNDC}}
  • {{CRC85|chapter=11}}
  • {{cite journal |author = E. V. Marathe |title= The Half-Life of Yttrium-90 |journal=Journal of Scientific & Industrial Research |edition =Vol 14B |date=July 1955 |pages=354–355 }}

{{Navbox element isotopes}}

Category:Yttrium

Yttrium