'''홀뮴 동위 원소'''는 자연계에 존재하는 것과 인공적으로 만들어진 것이 있다. 자연계에 존재하는 홀뮴의 안정 동위 원소는 1종으로 165Ho이 100% 존재한다. 인공적으로 만들어진 홀뮴의 동위 원소는 140Ho부터 175Ho까지 합성되었는데, 이들 163Ho의 반감기가 4570년으로 가장 길다. 166m1Ho은 들떠 있지만 반감기는 1200년이나 된다. == == 핵자수 Z(p) N(n) 동위 원소 질량 (u) 반감기 붕괴방식ε: 전자 포획IT: 이성질핵 전이 붕괴 생성동위 원소 핵스핀 자연계에 존재하는동위 원소범위(몰 분율) 자연계에 존재하는최대 범위(몰 분율) 들뜬 에너지 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 (6~9) 141Dy 143Ho 67 76 142.95461(43)# 300# ms>200 ns β+ 143Dy 11/2-# 144Ho 67 77 143.95148(32)# 0.7(1) β+ 144Dy β+, 143Tb 145Ho 67 78 144.94720(32)# 2.4(1) β+ 145Dy (11/2-) 145mHo 100(100)# keV 100# ms 5/2+# 146Ho 67 79 145.94464(21)# 3.6(3) β+ 146Dy (10+) β+, (드묾) 145Tb 147Ho 67 80 146.94006(3) 5.8(4) β+ 147Dy (11/2-) β+, (드묾) 146Tb 148Ho 67 81 147.93772(14) 2.2(11) β+ 148Dy (1+) 148m1Ho 400(100)# keV 9.49(12) β+ (99.92%) 148Dy (6)- β+, (0.08%) 147Tb 148m2Ho 690(100)# keV 2.35(4) ms (10+) 149Ho 67 82 148.933775(20) 21.1(2) β+ 149Dy (11/2-) 149m1Ho 48.80(20) keV 56(3) β+ 149Dy (1/2+) 149m2Ho 7200(350) keV >=100 ns 150Ho 67 83 149.933496(15) 76.8(18) β+ 150Dy 2- 150m1Ho -10(50) keV 23.3(3) β+ 150Dy (9)+ 150m2Ho ~8000 keV 751 ns 151Ho 67 84 150.931688(13) 35.2(1) β+ (78%) 151Dy 11/2(-) (22%) 147Tb 151mHo 41.0(2) keV 47.2(10) (77%) 147Tb 1/2(+) β+ (22%) 151Dy 152Ho 67 85 151.931714(15) 161.8(3) β+ (88%) 152Dy 2- (12%) 148Tb 152m1Ho 160(1) keV 50.0(4) 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- (0.05%) 149Tb 153m1Ho 68.7(3) keV 9.3(5) min β+ (99.82%) 153Dy 1/2+ (0.18%) 149Tb 153m2Ho 2772 keV 229(2) ns (31/2+) 154Ho 67 87 153.930602(9) 11.76(19) min β+ (99.98%) 154Dy 2- (0.02%) 150Tb 154mHo 238(30) keV 3.10(14) min β+ (99.99%) 154Dy 8+ (0.001%) 150Tb IT (드묾) 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) 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+ (7%) 154Tb 158m1Ho 67.200(10) keV 28(2) min IT (81%) 158Ho 2- β+ (19%) '''158Dy''' 158m2Ho 180(70)# keV 21.3(23) min (9+) 159Ho 67 92 158.927712(4) 33.05(11) min β+ 159Dy 7/2- 159mHo 205.91(5) keV 8.30(8) IT 159Ho 1/2+ 160Ho 67 93 159.928729(16) 25.6(3) min β+ '''160Dy''' 5+ 160m1Ho 59.98(3) keV 5.02(5) IT (65%) 160Ho 2- β+ (35%) '''160Dy''' 160m2Ho 197(16) keV (9+) 161Ho 67 94 160.927855(3) 2.48(5) '''161Dy''' 7/2- 161mHo 211.16(3) keV 6.76(7) IT 161Ho 1/2+ 162Ho 67 95 161.929096(4) 15.0(10) min β+ '''162Dy''' 1+ 162mHo 106(7) keV 67.0(7) min IT (62%) 162Ho 6- β+ (38%) '''162Dy''' 163Ho 67 96 162.9287339(27) 4570(25) '''163Dy''' 7/2- 163mHo 297.88(7) keV 1.09(3) IT 163Ho 1/2+ 164Ho 67 97 163.9302335(30) 29(1) min (60%) '''164Dy''' 1+ β- (40%) 164Er 164mHo 139.77(8) keV 38.0(10) min37.5(+15-5) min IT 164Ho 6- 165Ho 67 98 164.9303221(27) '''안정''' 7/2- 1.0000 166Ho 67 99 165.9322842(27) 26.83(2) β- '''166Er''' 0- 166m1Ho 5.985(18) keV 1,200(180) β- '''166Er''' (7)- 166m2Ho 190.9052(20) keV 185(15) µs 3+ 167Ho 67 100 166.933133(6) 3.003(18) β- '''167Er''' 7/2- 167mHo 259.34(11) keV 6.0(10) µs 3/2+ 168Ho 67 101 167.93552(3) 2.99(7) min β- '''168Er''' 3+ 168m1Ho 59(1) keV 132(4) IT (99.5%) 168Ho (6+) β- (0.5%) '''168Er''' 168m2Ho 143.4(2) keV >4 µs (1)- 168m3Ho 192.6(2) keV 108(11) ns 1+ 169Ho 67 102 168.936872(22) 4.72(10) min β- 169Er 7/2- 170Ho 67 103 169.93962(5) 2.76(5) min β- '''170Er''' 6+# 170mHo 120(70) keV 43(2) β- '''170Er''' (1+) 171Ho 67 104 170.94147(64) 53(2) β- 171Er 7/2-# 172Ho 67 105 171.94482(43)# 25(3) β- 172Er 173Ho 67 106 172.94729(43)# 10# β- 173Er 7/2-# 174Ho 67 107 173.95115(54)# 8# 175Ho 67 108 174.95405(64)# 5# 7/2-# == 각주 == 동위 원소 분류:원소별 동위 원소 목록