자연계에 존재하는 안티모니의 안정 동위 원소는 2종이며 121Sb와 123Sb가 존재한다. 125Sb는 반감기가 2.75856년으로 안티모니의 인공 방사성 동위 원소들 반감기가 가장 길다. == == 핵자수 Z(p) N(n) 동위 원소 질량 (u) 반감기 붕괴방식IT: 이성질핵 전이 붕괴 생성동위 원소 핵스핀 자연계에 존재하는동위 원소범위(몰 분율) 자연계에 존재하는최대 범위(몰 분율) 들뜬 에너지 103Sb 51 52 102.93969(32)# 100# ms >1.5 µs β+ 103Sn 5/2+# 104Sb 51 53 103.93647(39)# 0.47(13) s0.44(+15-11) β+ (86%) 104Sn (7%) 103Sn β+, (7%) 103In (100In 105Sb 51 54 104.93149(11) 1.12(16) β+ (99%) 105Sn (5/2+) (1%) 104Sn β+, (104In 106Sb 51 55 105.92879(34)# 0.6(2) β+ 106Sn (4+) 106mSb 1000(500)# keV 220(20) ns 107Sb 51 56 106.92415(32)# 4.0(2) β+ 107Sn 5/2+# 108Sb 51 57 107.92216(22)# 7.4(3) β+ 108Sn (4+) β+, (극히 드묾) 107In 109Sb 51 58 108.918132(20) 17.3(5) β+ 109Sn 5/2+# 110Sb 51 59 109.91675(22)# 23.0(4) β+ 110Sn (4+) 111Sb 51 60 110.91316(3) 75(1) β+ 111Sn (5/2+) 112Sb 51 61 111.912398(19) 51.4(10) β+ '''112Sn''' 3+ 113Sb 51 62 112.909372(19) 6.67(7) min β+ 113Sn 5/2+ 114Sb 51 63 113.90927(3) 3.49(3) min β+ '''114Sn''' (3+) 114mSb 495.5(7) keV 219(12) µs (8-) 115Sb 51 64 114.906598(17) 32.1(3) min β+ '''115Sn''' 5/2+ 116Sb 51 65 115.906794(6) 15.8(8) min β+ '''116Sn''' 3+ 116m1Sb 93.99(5) keV 194(4) ns 1+ 116m2Sb 380(40) keV 60.3(6) min β+ '''116Sn''' 8- 117Sb 51 66 116.904836(10) 2.80(1) β+ '''117Sn''' 5/2+ 118Sb 51 67 117.905529(4) 3.6(1) min β+ '''118Sn''' 1+ 118m1Sb 50.814(21) keV 20.6(6) µs (3)+ 118m2Sb 250(6) keV 5.00(2) β+ '''118Sn''' 8- 119Sb 51 68 118.903942(9) 38.19(22) '''119Sn''' 5/2+ 119m1Sb 2553.6(3) keV 130(3) ns (19/2-) 119m2Sb 2852(7) keV 850(90) ms IT 119Sb 27/2+# 120Sb 51 69 119.905072(8) 15.89(4) min β+ '''120Sn''' 1+ 120m1Sb 0(100)# keV 5.76(2) β+ '''120Sn''' 8- 120m2Sb 78.16(5) keV 246(2) ns (3+) 120m3Sb 2328.3(6) keV 400(8) ns (6) 121Sb 51 70 120.9038157(24) '''안정''' 5/2+ 0.5721(5) 122Sb 51 71 121.9051737(24) 2.7238(2) β- (97.59%) '''122Te''' 2- β+ (2.41%) '''122Sn''' 122m1Sb 61.4131(5) keV 1.86(8) µs 3+ 122m2Sb 137.4726(8) keV 0.53(3) ms (5)+ 122m3Sb 163.5591(17) keV 4.191(3) min IT 122Sb (8)- 123Sb 51 72 122.9042140(22) '''안정''' 7/2+ 0.4279(5) 124Sb 51 73 123.9059357(22) 60.20(3) β- '''124Te''' 3- 124m1Sb 10.8627(8) keV 93(5) IT (75%) 124Sb 5+ β- (25%) '''124Te''' 124m2Sb 36.8440(14) keV 20.2(2) min (8)- 124m3Sb 40.8038(7) keV 3.2(3) µs (3+,4+) 125Sb 51 74 124.9052538(28) 2.75856(25) β- 125mTe 7/2+ 126Sb 51 75 125.90725(3) 12.35(6) β- '''126Te''' (8-) 126m1Sb 17.7(3) keV 19.15(8) min β- (86%) '''126Te''' (5+) IT (14%) 126Sb 126m2Sb 40.4(3) keV ~11 IT 126m1Sb (3-) 126m3Sb 104.6(3) keV 553(5) ns (3+) 127Sb 51 76 126.906924(6) 3.85(5) β- 127mTe 7/2+ 128Sb 51 77 127.909169(27) 9.01(4) β- '''''128Te''''' 8- 128mSb 10(7) keV 10.4(2) min β- (96.4%) '''''128Te''''' 5+ IT (3.6%) 128Sb 129Sb 51 78 128.909148(23) 4.40(1) β- 129mTe 7/2+ 129m1Sb 1851.05(10) keV 17.7(1) min β- (85%) 129Te (19/2-) IT (15%) 129Sb 129m2Sb 1860.90(10) keV >2 µs (15/2-) 129m3Sb 2138.9(5) keV 1.1(1) µs (23/2+) 130Sb 51 79 129.911656(18) 39.5(8) min β- '''''130Te''''' (8-)# 130mSb 4.80(20) keV 6.3(2) min β- '''''130Te''''' (4,5)+ 131Sb 51 80 130.911982(22) 23.03(4) min β- 131mTe (7/2+) 132Sb 51 81 131.914467(15) 2.79(5) min β- 132Te (4+) 132m1Sb 200(30) keV 4.15(5) min β- 132Te (8-) 132m2Sb 254.5(3) keV 102(4) ns (6-) 133Sb 51 82 132.915252(27) 2.5(1) min β- 133mTe (7/2+) 134Sb 51 83 133.92038(5) 0.78(6) β- 134Te (0-) 134mSb 80(110) keV 10.07(5) β- (99.9%) 134Te (7-) β-, (0.091%) 133Te 135Sb 51 84 134.92517(11) 1.68(2) β- (82.4%) 135Te (7/2+) β-, (17.6%) 134Te 136Sb 51 85 135.93035(32)# 0.923(14) β- (83%) 136Te 1-# β-, (17%) 135Te 136mSb 173(3) keV 570(50) ns 6-# 137Sb 51 86 136.93531(43)# 450(50) ms β- 137Te 7/2+# β-, 136Te 138Sb 51 87 137.94079(32)# 500# ms >300 ns β- 138Te 2-# β-, 137Te 139Sb 51 88 138.94598(54)# 300# ms >300 ns β- 139Te 7/2+# == 각주 == 동위 원소 분류:원소별 동위 원소 목록