Английская Википедия:Isotopes of holmium

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Шаблон:Short description Шаблон:Infobox holmium isotopes Natural holmium (₆₇Ho) contains one observationally stable isotope, ¹⁶⁵Ho. The below table lists 36 isotopes spanning ¹⁴⁰Ho through ¹⁷⁵Ho as well as 33 nuclear isomers. Among the known synthetic radioactive isotopes; the most stable one is ¹⁶³Ho, with a half-life of 4,570 years. All other radioisotopes have half-lives not greater than 1.117 days in their ground states (although the metastable ^166m1Ho has a half-life of about 1,200 years), and most have half-lives under 3 hours.

Theoretically, the only "stable" isotope of holmium, ¹⁶⁵Ho, as well as all nuclides in the beta-decay stable isobars with mass number ≥165, can go alpha decay, hence ¹⁶⁴Dy is the heaviest theoretically stable nuclide.

List of isotopes

Файл:Holmium 166m oxide.png

Holmium-166m1 oxide

Шаблон:Isotopes table |- | ¹⁴⁰Ho | style="text-align:right" | 67 | style="text-align:right" | 73 | 139.96854(54)# | 6(3) ms | | | 8+# | | |- | ¹⁴¹Ho | style="text-align:right" | 67 | style="text-align:right" | 74 | 140.96310(54)# | 4.1(3) ms | | | (7/2−) | | |- | style="text-indent:1em" | ^141mHo | colspan="3" style="text-indent:2em" | 66(2) keV | 6.4(8) µs | | | (1/2+) | | |- | rowspan=2|¹⁴²Ho | rowspan=2 style="text-align:right" | 67 | rowspan=2 style="text-align:right" | 75 | rowspan=2|141.95977(54)# | rowspan=2|400(100) ms | β⁺ | ¹⁴²Dy | rowspan=2|(6 to 9) | rowspan=2| | rowspan=2| |- | p | ¹⁴¹Dy |- | ¹⁴³Ho | style="text-align:right" | 67 | style="text-align:right" | 76 | 142.95461(43)# | 300# ms
[>200 ns] | β⁺ | ¹⁴³Dy | 11/2−# | | |- | rowspan=2|¹⁴⁴Ho | rowspan=2 style="text-align:right" | 67 | rowspan=2 style="text-align:right" | 77 | rowspan=2|143.95148(32)# | rowspan=2|0.7(1) s | β⁺ | ¹⁴⁴Dy | rowspan=2| | rowspan=2| | rowspan=2| |- | β⁺, p | ¹⁴³Tb |- | ¹⁴⁵Ho | style="text-align:right" | 67 | style="text-align:right" | 78 | 144.94720(32)# | 2.4(1) s | β⁺ | ¹⁴⁵Dy | (11/2−) | | |- | style="text-indent:1em" | ^145mHo | colspan="3" style="text-indent:2em" | 100(100)# keV | 100# ms | | | 5/2+# | | |- | rowspan=2|¹⁴⁶Ho | rowspan=2 style="text-align:right" | 67 | rowspan=2 style="text-align:right" | 79 | rowspan=2|145.94464(21)# | rowspan=2|3.6(3) s | β⁺ | ¹⁴⁶Dy | rowspan=2|(10+) | rowspan=2| | rowspan=2| |- | β⁺, p (rare) | ¹⁴⁵Tb |- | rowspan=2|¹⁴⁷Ho | rowspan=2 style="text-align:right" | 67 | rowspan=2 style="text-align:right" | 80 | rowspan=2|146.94006(3) | rowspan=2|5.8(4) s | β⁺ | ¹⁴⁷Dy | rowspan=2|(11/2−) | rowspan=2| | rowspan=2| |- | β⁺, p (rare) | ¹⁴⁶Tb |- | ¹⁴⁸Ho | style="text-align:right" | 67 | style="text-align:right" | 81 | 147.93772(14) | 2.2(11) s | β⁺ | ¹⁴⁸Dy | (1+) | | |- | rowspan=2 style="text-indent:1em" | ^148m1Ho | rowspan=2 colspan="3" style="text-indent:2em" | 400(100)# keV | rowspan=2|9.49(12) s | β⁺ (99.92%) | ¹⁴⁸Dy | rowspan=2|(6)− | rowspan=2| | rowspan=2| |- | β⁺, p (.08%) | ¹⁴⁷Tb |- | style="text-indent:1em" | ^148m2Ho | colspan="3" style="text-indent:2em" | 690(100)# keV | 2.35(4) ms | | | (10+) | | |- | ¹⁴⁹Ho | style="text-align:right" | 67 | style="text-align:right" | 82 | 148.933775(20) | 21.1(2) s | β⁺ | ¹⁴⁹Dy | (11/2−) | | |- | style="text-indent:1em" | ^149m1Ho | colspan="3" style="text-indent:2em" | 48.80(20) keV | 56(3) s | β⁺ | ¹⁴⁹Dy | (1/2+) | | |- | style="text-indent:1em" | ^149m2Ho | colspan="3" style="text-indent:2em" | 7200(350) keV | >=100 ns | | | | | |- | ¹⁵⁰Ho | style="text-align:right" | 67 | style="text-align:right" | 83 | 149.933496(15) | 76.8(18) s | β⁺ | ¹⁵⁰Dy | 2− | | |- | style="text-indent:1em" | ^150m1Ho | colspan="3" style="text-indent:2em" | −10(50) keV | 23.3(3) s | β⁺ | ¹⁵⁰Dy | (9)+ | | |- | style="text-indent:1em" | ^150m2Ho | colspan="3" style="text-indent:2em" | ~8000 keV | 751 ns | | | | | |- | rowspan=2|¹⁵¹Ho | rowspan=2 style="text-align:right" | 67 | rowspan=2 style="text-align:right" | 84 | rowspan=2|150.931688(13) | rowspan=2|35.2(1) s | β⁺ (78%) | ¹⁵¹Dy | rowspan=2|11/2(−) | rowspan=2| | rowspan=2| |- | α (22%) | ¹⁴⁷Tb |- | rowspan=2 style="text-indent:1em" | ^151mHo | rowspan=2 colspan="3" style="text-indent:2em" | 41.0(2) keV | rowspan=2|47.2(10) s | α (77%) | ¹⁴⁷Tb | rowspan=2|1/2(+) | rowspan=2| | rowspan=2| |- | β⁺ (22%) | ¹⁵¹Dy |- | rowspan=2|¹⁵²Ho | rowspan=2 style="text-align:right" | 67 | rowspan=2 style="text-align:right" | 85 | rowspan=2|151.931714(15) | rowspan=2|161.8(3) s | β⁺ (88%) | ¹⁵²Dy | rowspan=2|2− | rowspan=2| | rowspan=2| |- | α (12%) | ¹⁴⁸Tb |- | style="text-indent:1em" | ^152m1Ho | colspan="3" style="text-indent:2em" | 160(1) keV | 50.0(4) s | | | 9+ | | |- | style="text-indent:1em" | ^152m2Ho | colspan="3" style="text-indent:2em" | 3019.59(19) keV | 8.4(3) µs | | | 19− | | |- | rowspan=2|¹⁵³Ho | rowspan=2 style="text-align:right" | 67 | rowspan=2 style="text-align:right" | 86 | rowspan=2|152.930199(6) | rowspan=2|2.01(3) min | β⁺ (99.94%) | ¹⁵³Dy | rowspan=2|11/2− | rowspan=2| | rowspan=2| |- | α (.05%) | ¹⁴⁹Tb |- | rowspan=2 style="text-indent:1em" | ^153m1Ho | rowspan=2 colspan="3" style="text-indent:2em" | 68.7(3) keV | rowspan=2|9.3(5) min | β⁺ (99.82%) | ¹⁵³Dy | rowspan=2|1/2+ | rowspan=2| | rowspan=2| |- | α (.18%) | ¹⁴⁹Tb |- | style="text-indent:1em" | ^153m2Ho | colspan="3" style="text-indent:2em" | 2772 keV | 229(2) ns | | | (31/2+) | | |- | rowspan=2|¹⁵⁴Ho | rowspan=2 style="text-align:right" | 67 | rowspan=2 style="text-align:right" | 87 | rowspan=2|153.930602(9) | rowspan=2|11.76(19) min | β⁺ (99.98%) | ¹⁵⁴Dy | rowspan=2|2− | rowspan=2| | rowspan=2| |- | α (.02%) | ¹⁵⁰Tb |- | rowspan=3 style="text-indent:1em" | ^154mHo | rowspan=3 colspan="3" style="text-indent:2em" | 238(30) keV | rowspan=3|3.10(14) min | β⁺ (99.99%) | ¹⁵⁴Dy | rowspan=3|8+ | rowspan=3| | rowspan=3| |- | α (.001%) | ¹⁵⁰Tb |- | IT (rare) | ¹⁵⁴Ho |- | ¹⁵⁵Ho | style="text-align:right" | 67 | style="text-align:right" | 88 | 154.929103(19) | 48(1) min | β⁺ | ¹⁵⁵Dy | 5/2+ | | |- | style="text-indent:1em" | ^155mHo | colspan="3" style="text-indent:2em" | 141.97(11) keV | 880(80) µs | | | 11/2− | | |- | ¹⁵⁶Ho | style="text-align:right" | 67 | style="text-align:right" | 89 | 155.92984(5) | 56(1) min | β⁺ | ¹⁵⁶Dy | 4− | | |- | rowspan=2 style="text-indent:1em" | ^156m1Ho | rowspan=2 colspan="3" style="text-indent:2em" | 100(50)# keV | rowspan=2|7.8(3) min | β⁺ | ¹⁵⁶Dy | rowspan=2|(9+) | rowspan=2| | rowspan=2| |- | IT | ¹⁵⁶Ho |- | style="text-indent:1em" | ^156m2Ho | colspan="3" style="text-indent:2em" | 52.4(5) keV | 9.5(15) s | | | 1− | | |- | ¹⁵⁷Ho | style="text-align:right" | 67 | style="text-align:right" | 90 | 156.928256(26) | 12.6(2) min | β⁺ | ¹⁵⁷Dy | 7/2− | | |- | rowspan=2|¹⁵⁸Ho | rowspan=2 style="text-align:right" | 67 | rowspan=2 style="text-align:right" | 91 | rowspan=2|157.928941(29) | rowspan=2|11.3(4) min | β⁺ (93%) | ¹⁵⁸Dy | rowspan=2|5+ | rowspan=2| | rowspan=2| |- | α (7%) | ¹⁵⁴Tb |- | rowspan=2 style="text-indent:1em" | ^158m1Ho | rowspan=2 colspan="3" style="text-indent:2em" | 67.200(10) keV | rowspan=2|28(2) min | IT (81%) | ¹⁵⁸Ho | rowspan=2|2− | rowspan=2| | rowspan=2| |- | β⁺ (19%) | ¹⁵⁸Dy |- | style="text-indent:1em" | ^158m2Ho | colspan="3" style="text-indent:2em" | 180(70)# keV | 21.3(23) min | | | (9+) | | |- | ¹⁵⁹Ho | style="text-align:right" | 67 | style="text-align:right" | 92 | 158.927712(4) | 33.05(11) min | β⁺ | ¹⁵⁹Dy | 7/2− | | |- | style="text-indent:1em" | ^159mHo | colspan="3" style="text-indent:2em" | 205.91(5) keV | 8.30(8) s | IT | ¹⁵⁹Ho | 1/2+ | | |- | ¹⁶⁰Ho | style="text-align:right" | 67 | style="text-align:right" | 93 | 159.928729(16) | 25.6(3) min | β⁺ | ¹⁶⁰Dy | 5+ | | |- | rowspan=2 style="text-indent:1em" | ^160m1Ho | rowspan=2 colspan="3" style="text-indent:2em" | 59.98(3) keV | rowspan=2|5.02(5) h | IT (65%) | ¹⁶⁰Ho | rowspan=2|2− | rowspan=2| | rowspan=2| |- | β⁺ (35%) | ¹⁶⁰Dy |- | style="text-indent:1em" | ^160m2Ho | colspan="3" style="text-indent:2em" | 197(16) keV | 3 s | | | (9+) | | |- | ¹⁶¹Ho | style="text-align:right" | 67 | style="text-align:right" | 94 | 160.927855(3) | 2.48(5) h | EC | ¹⁶¹Dy | 7/2− | | |- | style="text-indent:1em" | ^161mHo | colspan="3" style="text-indent:2em" | 211.16(3) keV | 6.76(7) s | IT | ¹⁶¹Ho | 1/2+ | | |- | ¹⁶²Ho | style="text-align:right" | 67 | style="text-align:right" | 95 | 161.929096(4) | 15.0(10) min | β⁺ | ¹⁶²Dy | 1+ | | |- | rowspan=2 style="text-indent:1em" | ^162mHo | rowspan=2 colspan="3" style="text-indent:2em" | 106(7) keV | rowspan=2|67.0(7) min | IT (62%) | ¹⁶²Ho | rowspan=2|6− | rowspan=2| | rowspan=2| |- | β⁺ (38%) | ¹⁶²Dy |- | ¹⁶³Ho | style="text-align:right" | 67 | style="text-align:right" | 96 | 162.9287339(27) | 4570(25) y | EC | ¹⁶³Dy | 7/2− | | |- | style="text-indent:1em" | ^163mHo | colspan="3" style="text-indent:2em" | 297.88(7) keV | 1.09(3) s | IT | ¹⁶³Ho | 1/2+ | | |- | rowspan=2|¹⁶⁴Ho | rowspan=2 style="text-align:right" | 67 | rowspan=2 style="text-align:right" | 97 | rowspan=2|163.9302335(30) | rowspan=2|29(1) min | EC (60%) | ¹⁶⁴Dy | rowspan=2|1+ | rowspan=2| | rowspan=2| |- | β⁻ (40%) | ¹⁶⁴Er |- | style="text-indent:1em" | ^164mHo | colspan="3" style="text-indent:2em" | 139.77(8) keV | 38.0(10) min
[37.5(+15−5) min] | IT | ¹⁶⁴Ho | 6− | | |- | ¹⁶⁵Ho | style="text-align:right" | 67 | style="text-align:right" | 98 | 164.9303221(27) | colspan=3 align=center|Observationally Stable | 7/2− | 1.0000 | |- | ¹⁶⁶Ho | style="text-align:right" | 67 | style="text-align:right" | 99 | 165.9322842(27) | 26.83(2) h | β⁻ | ¹⁶⁶Er | 0− | | |- | style="text-indent:1em" | ^166m1Ho | colspan="3" style="text-indent:2em" | 5.985(18) keV | 1200(180) y | β⁻ | ¹⁶⁶Er | (7)− | | |- | style="text-indent:1em" | ^166m2Ho | colspan="3" style="text-indent:2em" | 190.9052(20) keV | 185(15) µs | | | 3+ | | |- | ¹⁶⁷Ho | style="text-align:right" | 67 | style="text-align:right" | 100 | 166.933133(6) | 3.003(18) h | β⁻ | ¹⁶⁷Er | 7/2− | | |- | style="text-indent:1em" | ^167mHo | colspan="3" style="text-indent:2em" | 259.34(11) keV | 6.0(10) µs | | | 3/2+ | | |- | ¹⁶⁸Ho | style="text-align:right" | 67 | style="text-align:right" | 101 | 167.93552(3) | 2.99(7) min | β⁻ | ¹⁶⁸Er | 3+ | | |- | rowspan=2 style="text-indent:1em" | ^168m1Ho | rowspan=2 colspan="3" style="text-indent:2em" | 59(1) keV | rowspan=2|132(4) s | IT (99.5%) | ¹⁶⁸Ho | rowspan=2|(6+) | rowspan=2| | rowspan=2| |- | β⁻ (.5%) | ¹⁶⁸Er |- | style="text-indent:1em" | ^168m2Ho | colspan="3" style="text-indent:2em" | 143.4(2) keV | >4 µs | | | (1)− | | |- | style="text-indent:1em" | ^168m3Ho | colspan="3" style="text-indent:2em" | 192.6(2) keV | 108(11) ns | | | 1+ | | |- | ¹⁶⁹Ho | style="text-align:right" | 67 | style="text-align:right" | 102 | 168.936872(22) | 4.72(10) min | β⁻ | ¹⁶⁹Er | 7/2− | | |- | ¹⁷⁰Ho | style="text-align:right" | 67 | style="text-align:right" | 103 | 169.93962(5) | 2.76(5) min | β⁻ | ¹⁷⁰Er | 6+# | | |- | style="text-indent:1em" | ^170mHo | colspan="3" style="text-indent:2em" | 120(70) keV | 43(2) s | β⁻ | ¹⁷⁰Er | (1+) | | |- | ¹⁷¹Ho | style="text-align:right" | 67 | style="text-align:right" | 104 | 170.94147(64) | 53(2) s | β⁻ | ¹⁷¹Er | 7/2−# | | |- | ¹⁷²Ho | style="text-align:right" | 67 | style="text-align:right" | 105 | 171.94482(43)# | 25(3) s | β⁻ | ¹⁷²Er | | | |- | ¹⁷³Ho | style="text-align:right" | 67 | style="text-align:right" | 106 | 172.94729(43)# | 10# s | β⁻ | ¹⁷³Er | 7/2−# | | |- | ¹⁷⁴Ho | style="text-align:right" | 67 | style="text-align:right" | 107 | 173.95115(54)# | 8# s | | | | | |- | ¹⁷⁵Ho | style="text-align:right" | 67 | style="text-align:right" | 108 | 174.95405(64)# | 5# s | | | 7/2−# | | Шаблон:Isotopes table/footer

References

• Isotope masses from:
  • Шаблон:NUBASE 2003
• Isotopic compositions and standard atomic masses from:
  • Шаблон:CIAAW2003
  • Шаблон:CIAAW 2005
• Half-life, spin, and isomer data selected from the following sources.
  • Шаблон:NUBASE 2003
  • Шаблон:NNDC
  • Шаблон:CRC85