A | B | C | D | E | F | G | H | CH | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
| |||||||||||||||||||||||||||||||||||||||||||
Standard atomic weight Ar°(Ho) | |||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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.
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] |
Spin and parity [n 7][n 4] |
Natural abundance (mole fraction) | |
---|---|---|---|---|---|---|---|---|---|
Excitation energy[n 4] | Normal proportion | Range of variation | |||||||
140Ho | 67 | 73 | 139.96854(54)# | 6(3) ms | 8+# | ||||
141Ho | 67 | 74 | 140.96310(54)# | 4.1(3) ms | (7/2−) | ||||
141mHo | 66(2) keV | 6.4(8) μs | (1/2+) | ||||||
142Ho | 67 | 75 | 141.95977(54)# | 400(100) ms | β+ | 142Dy | (6 to 9) | ||
p | 141Dy | ||||||||
143Ho | 67 | 76 | 142.95461(43)# | 300# ms |
β+ | 143Dy | 11/2−# | ||
144Ho | 67 | 77 | 143.95148(32)# | 0.7(1) s | β+ | 144Dy | |||
β+, p | 143Tb | ||||||||
145Ho | 67 | 78 | 144.94720(32)# | 2.4(1) s | β+ | 145Dy | (11/2−) | ||
145mHo | 100(100)# keV | 100# ms | 5/2+# | ||||||
146Ho | 67 | 79 | 145.94464(21)# | 3.6(3) s | β+ | 146Dy | (10+) | ||
β+, p (rare) | 145Tb | ||||||||
147Ho | 67 | 80 | 146.94006(3) | 5.8(4) s | β+ | 147Dy | (11/2−) | ||
β+, p (rare) | 146Tb | ||||||||
148Ho | 67 | 81 | 147.93772(14) | 2.2(11) s | β+ | 148Dy | (1+) | ||
148m1Ho | 400(100)# keV | 9.49(12) s | β+ (99.92%) | 148Dy | (6)− | ||||
β+, p (.08%) | 147Tb | ||||||||
148m2Ho | 690(100)# keV | 2.35(4) ms | (10+) | ||||||
149Ho | 67 | 82 | 148.933775(20) | 21.1(2) s | β+ | 149Dy | (11/2−) | ||
149m1Ho | 48.80(20) keV | 56(3) s | β+ | 149Dy | (1/2+) | ||||
149m2Ho | 7200(350) keV | >=100 ns | |||||||
150Ho | 67 | 83 | 149.933496(15) | 76.8(18) s | β+ | 150Dy | 2− | ||
150m1Ho | −10(50) keV | 23.3(3) s | β+ | 150Dy | (9)+ | ||||
150m2Ho | ~8000 keV | 751 ns | |||||||
151Ho | 67 | 84 | 150.931688(13) | 35.2(1) s | β+ (78%) | 151Dy | 11/2(−) | ||
α (22%) | 147Tb | ||||||||
151mHo | 41.0(2) keV | 47.2(10) s | α (77%) | 147Tb | 1/2(+) | ||||
β+ (22%) | 151Dy | ||||||||
152Ho | 67 | 85 | 151.931714(15) | 161.8(3) s | β+ (88%) | 152Dy | 2− | ||
α (12%) | 148Tb | ||||||||
152m1Ho | 160(1) keV | 50.0(4) s | 9+ | ||||||
152m2Ho | 3019.59(19) keV | 8.4(3) μs | 19− | ||||||
153Ho | 67 | 86 | 152.930199(6) | 2.01(3) min | β+ (99.94%) | 153Dy | 11/2− | ||
α (.05%) | 149Tb | ||||||||
153m1Ho | 68.7(3) keV | 9.3(5) min | β+ (99.82%) | 153Dy | 1/2+ | ||||
α (.18%) | 149Tb | ||||||||
153m2Ho | 2772 keV | 229(2) ns | (31/2+) | ||||||
154Ho | 67 | 87 | 153.930602(9) | 11.76(19) min | β+ (99.98%) | 154Dy | 2− | ||
α (.02%) | 150Tb | ||||||||
154mHo | 238(30) keV | 3.10(14) min | β+ (99.99%) | 154Dy | 8+ | ||||
α (.001%) | 150Tb | ||||||||
IT (rare) | 154Ho | ||||||||
155Ho | 67 | 88 | 154.929103(19) | 48(1) min | β+ | 155Dy | 5/2+ | ||
155mHo | 141.97(11) keV | 880(80) μs | 11/2− | ||||||
156Ho | 67 | 89 | 155.92984(5) | 56(1) min | β+ | 156Dy | 4− | ||
156m1Ho | 100(50)# keV | 7.8(3) min | β+ | 156Dy | (9+) | ||||
IT | 156Ho | ||||||||
156m2Ho | 52.4(5) keV | 9.5(15) s | 1− | ||||||
157Ho | 67 | 90 | 156.928256(26) | 12.6(2) min | β+ | 157Dy | 7/2− | ||
158Ho | 67 | 91 | 157.928941(29) | 11.3(4) min | β+ (93%) | 158Dy | 5+ | ||
α (7%) | 154Tb | ||||||||
158m1Ho | 67.200(10) keV | 28(2) min
Zdroj:https://en.wikipedia.org?pojem=Holmium-163 Text je dostupný za podmienok Creative Commons Attribution/Share-Alike License 3.0 Unported; prípadne za ďalších podmienok. Podrobnejšie informácie nájdete na stránke Podmienky použitia.
Analytika
Antropológia Aplikované vedy Bibliometria Dejiny vedy Encyklopédie Filozofia vedy Forenzné vedy Humanitné vedy Knižničná veda Kryogenika Kryptológia Kulturológia Literárna veda Medzidisciplinárne oblasti Metódy kvantitatívnej analýzy Metavedy Metodika Text je dostupný za podmienok Creative
Commons Attribution/Share-Alike License 3.0 Unported; prípadne za ďalších
podmienok. www.astronomia.sk | www.biologia.sk | www.botanika.sk | www.dejiny.sk | www.economy.sk | www.elektrotechnika.sk | www.estetika.sk | www.farmakologia.sk | www.filozofia.sk | Fyzika | www.futurologia.sk | www.genetika.sk | www.chemia.sk | www.lingvistika.sk | www.politologia.sk | www.psychologia.sk | www.sexuologia.sk | www.sociologia.sk | www.veda.sk I www.zoologia.sk |