Niobiumin isotoopit ovat kemiallisen alkuaineen niobiumin atomien (ja ytimien )lajikkeita, joiden ytimessä on erilainen neutronipitoisuus . Luonnollinen niobium koostuu yhdestä stabiilista isotoopista, 93 Nb. Pisin elinikäinen radioisotooppi on 92 Nb ja puoliintumisaika 34,7 miljoonaa vuotta.
Nuklidi symboli |
Z ( p ) | N( n ) | Isotooppimassa [1] ( a.u.m. ) |
Puoliintumisaika [ 2] (T 1/2 ) |
Decay kanava | Hajoamistuote | Ytimen spin ja pariteetti [2] |
Isotoopin esiintyvyys luonnossa |
Isotooppien runsauden muutoksien vaihteluväli luonnossa |
---|---|---|---|---|---|---|---|---|---|
Herätysenergia | |||||||||
81 Nb | 41 | 40 | 80.94903(161)# | <44 ns | β + , s | 80 v | 3/2−# | ||
s | 80 Zr | ||||||||
β + | 81 Zr | ||||||||
82 Nb | 41 | 41 | 81.94313(32)# | 51(5) ms | β + | 82 Zr | 0+ | ||
83 Nb | 41 | 42 | 82.93671(34) | 4.1(3) s | β + | 83 Zr | (5/2+) | ||
84 Nb | 41 | 43 | 83.93357(32)# | 9.8(9) s | β + (> 99,9 %) | 84 Zr | 3+ | ||
β + , p (<,1 %) | 83 Y | ||||||||
84mNb _ | 338(10) keV | 103(19) ns | (5−) | ||||||
85 Nb _ | 41 | 44 | 84.92791(24) | 20.9(7) s | β + | 85 Zr | (9/2+) | ||
85mNb _ | 759,0 (10) keV | 12(5) s | (1/2−) | ||||||
86 Nb _ | 41 | 45 | 85.92504(9) | 88(1) s | β + | 86 Zr | (6+) | ||
86mNb _ | 250(160)# keV | 56(8) s | β + | 86 Zr | korkea | ||||
87 Nb _ | 41 | 46 | 86.92036(7) | 3,75 (9) min | β + | 87 Zr | (1/2−) | ||
87mNb _ | 3,84(14) keV | 2,6 (1) min | β + | 87 Zr | (9/2+)# | ||||
88 Nb _ | 41 | 47 | 87.91833(11) | 14,55(6) min | β + | 88 Zr | (8+) | ||
88mNb _ | 40(140) keV | 7,8 (1) min | β + | 88 Zr | (4−) | ||||
89 Nb _ | 41 | 48 | 88.913418(29) | 2.03(7) h | β + | 89 Zr | (9/2+) | ||
89mNb _ | 0(30)# keV | 1.10(3) h | β + | 89 Zr | (1/2) | ||||
90 Nb_ | 41 | 49 | 89.911265(5) | 14.60(5) h | β + | 90 Zr | 8+ | ||
90m1 Nb | 122,370(22) keV | 63(2) µs | 6+ | ||||||
90m2 Nb | 124,67(25) keV | 18.81(6) s | IP | 90 Nb_ | neljä- | ||||
90m3 Nb | 171,10(10) keV | <1 µs | 7+ | ||||||
90m4 Nb | 382,01(25) keV | 6,19(8) ms | 1+ | ||||||
90m5Nb _ | 1880,21(20) keV | 472(13) ns | (11−) | ||||||
91 Nb _ | 41 | viisikymmentä | 90.906996(4) | 680(130) s | EZ (99,98 %) | 91 Zr | 9/2+ | ||
β + (0,013 %) | 91 Zr | ||||||||
91m1 Nb | 104,60(5) keV | 60,86(22) päivää | IP (93 %) | 91 Nb _ | 1/2− | ||||
EZ (7 %) | 91 Zr | ||||||||
β + (0,0028 %) | 91 Zr | ||||||||
91m2 Nb | 2034,35(19) keV | 3,76 (12) µs | (17/2−) | ||||||
92 Nb _ | 41 | 51 | 91.907194(3) | 3,47(24)⋅10 7 vuotta | β + (99,95 %) | 92 Zr | (7)+ | ||
β − (0,05 %) | 92kk_ _ | ||||||||
92m1Nb _ | 135,5(4) keV | 10.15(2) päivää | β + | 92 Zr | (2)+ | ||||
92m2 Nb | 225,7(4) keV | 5,9 (2) µs | (2) | ||||||
92m3 Nb | 2203,3(4) keV | 167(4) ns | (11−) | ||||||
93 Nb _ | 41 | 52 | 92.9063781(26) | vakaa | 9/2+ | 1.0000 | |||
93mNb _ | 30,77(2) keV | 16.13(14) s | IP | 93 Nb _ | 1/2− | ||||
94 Nb _ | 41 | 53 | 93.9072839(26) | 2.03(16)⋅10 4 s | β − | 94kk_ _ | (6)+ | ||
94mNb _ | 40,902(12) keV | 6,263(4) min | IP (99,5 %) | 94 Nb _ | 3+ | ||||
β − (0,5 %) | 94kk_ _ | ||||||||
95 Nb _ | 41 | 54 | 94.9068358(21) | 34.991(6) päivää | β − | 95kk_ _ | 9/2+ | ||
95mNb _ | 235,690(20) keV | 3.61(3) päivää | IP (94,4 %) | 95 Nb _ | 1/2− | ||||
β − (5,6 %) | 95kk_ _ | ||||||||
96 Nb _ | 41 | 55 | 95.908101(4) | 23.35(5) h | β − | 96kk_ _ | 6+ | ||
97 Nb _ | 41 | 56 | 96.9080986(27) | 72,1 (7) min | β − | 97kk_ _ | 9/2+ | ||
97mNb _ | 743,35(3) keV | 52,7(18) s | IP | 97 Nb _ | 1/2− | ||||
98 Nb _ | 41 | 57 | 97.910328(6) | 2,86(6) s | β − | 98kk_ _ | 1+ | ||
98mNb _ | 84(4) keV | 51,3 (4) min | β − (99,9 %) | 98kk_ _ | (5+) | ||||
IP (0,1 %) | 98 Nb _ | ||||||||
99 Nb_ | 41 | 58 | 98.911618(14) | 15.0(2) s | β − | 99kk_ _ | 9/2+ | ||
99mNb _ | 365,29(14) keV | 2,6 (2) min | β − (96,2 %) | 99kk_ _ | 1/2− | ||||
IP (3,8 %) | 99 Nb_ | ||||||||
100 Nb_ | 41 | 59 | 99.914182(28) | 1.5(2) s | β − | 100kk_ _ | 1+ | ||
100mNb _ | 470(40) keV | 2,99(11) s | β − | 100kk_ _ | (4+, 5+) | ||||
101 Nb _ | 41 | 60 | 100.915252(20) | 7.1(3) s | β − | 101kk_ _ | (5/2#)+ | ||
102 Nb _ | 41 | 61 | 101.91804(4) | 1.3(2) s | β − | 102kk_ _ | 1+ | ||
102mNb _ | 130(50) keV | 4.3(4) s | β − | 102kk_ _ | korkea | ||||
103 Nb _ | 41 | 62 | 102.91914(7) | 1.5(2) s | β − | 103kk_ _ | (5/2+) | ||
104 Nb _ | 41 | 63 | 103.92246(11) | 4.9(3) s | β − (99,94 %) | 104kk_ _ | (1+) | ||
β − , n (0,06 %) | 103kk_ _ | ||||||||
104mNb _ | 220(120) keV | 940(40) ms | β − (99,95 %) | 104kk_ _ | korkea | ||||
β − , n (0,05 %) | 103kk_ _ | ||||||||
105 Nb _ | 41 | 64 | 104.92394(11) | 2.95(6) s | β − (98,3 %) | 105kk_ _ | (5/2+)# | ||
β − , n (1,7 %) | 104kk_ _ | ||||||||
106 Nb _ | 41 | 65 | 105.92797(21)# | 920(40) ms | β − (95,5 %) | 106kk_ _ | 2+# | ||
β − , n (4,5 %) | 105kk_ _ | ||||||||
107 Nb _ | 41 | 66 | 106.93031(43)# | 300(9) ms | β − (94 %) | 107kk_ _ | 5/2+# | ||
β − , n (6 %) | 106kk_ _ | ||||||||
108 Nb _ | 41 | 67 | 107.93484(32)# | 0,193(17) s | β − (93,8 %) | 108kk_ _ | (2+) | ||
β − , n (6,2 %) | 107kk_ _ | ||||||||
109 Nb _ | 41 | 68 | 108.93763(54)# | 190(30) ms | β − (69 %) | 109kk_ _ | 5/2+# | ||
β − , n (69 %) | 108kk_ _ | ||||||||
110 Nb_ | 41 | 69 | 109.94244(54)# | 170(20) ms | β − (60 %) | 110kk_ _ | 2+# | ||
β − , n (40 %) | 109kk_ _ | ||||||||
111 Nb _ | 41 | 70 | 110.94565(54)# | 80# ms [>300 ns] | 5/2+# | ||||
112 Nb _ | 41 | 71 | 111.95083(75)# | 60# ms [>300 ns] | 2+# | ||||
113 Nb _ | 41 | 72 | 112.95470(86)# | 30# ms [>300 ns] | 5/2+# | ||||
114 Nb [3] | 41 | 73 | |||||||
115 Nb [3] | 41 | 74 | |||||||
116 Nb [4] | 41 | 75 | |||||||
117 Nb [5] | 41 | 76 |