Изотопи на тербиумот

Природниот тербиум (65Tb) е составен од еден стабилен изотоп, 159Tb. Карактеризирани се 37 радиоизотопи, од кои најстабилни се 158 Tb со полуживот од 180 години, 157Tb со период на полураспаѓање од 71 година и 160 Tb со полуживот од 72,3 дена. Сите преостанати радиоактивни изотопи имаат период на полураспаѓање кој е помал од 6.907 дена, а поголемиот дел од нив имаат полуживот помал од 24 секунди. Овој елемент има и 27 мета состојби, со најстабилни 156m1Tb (t 1/2 = 24,4 часа), 154m2 Tb (t1/2 = 22,7 часа) и 154m1 Tb (t1/2 = 9,4 часа).

Примарниот режим на распаѓање пред најзастапениот стабилен изотоп, 159Tb, е фаќање електрони, а примарниот режим зад е бета распаѓањето. Примарните производи на распаѓање пред 159 Tb се изотопи на елементот Gd (гадолиниум), а примарните производи по 159 Tb се изотопи на елементот Dy (диспрозиум).

## Список на изотопи

|-id=Terbium-135
| 135Tb
| style="text-align:right" | 65
| style="text-align:right" | 70
| 134.96452(43)#
| 1.01(28)&nbsp;ms
| p
| 134Gd
| (7/2−)
|
|-id=Terbium-139
| 139Tb
| style="text-align:right" | 65
| style="text-align:right" | 74
| 138.94833(32)#
| 1.6(2)&nbsp;s
| β<sup>+</sup>
| 139Gd
| 5/2−#
|
|-id=Terbium-140
| rowspan=3|140Tb
| rowspan=3 style="text-align:right" | 65
| rowspan=3 style="text-align:right" | 75
| rowspan=3|139.94581(86)
| rowspan=3|2.29(15)&nbsp;s
| β+ (99.74%)
| 140Gd
| rowspan=3|(7+)
| rowspan=3|
|-
| EC (140Gd
|-
| β+, p (0.26%)
| 139Eu
|-id=Terbium-141
| 141Tb
| style="text-align:right" | 65
| style="text-align:right" | 76
| 140.94145(11)
| 3.5(2)&nbsp;s
| β+
| 141Gd
| (5/2−)
|
|-id=Terbium-141m
| style="text-indent:1em" | 141mTb
| colspan="3" style="text-indent:2em" | 0(200)#&nbsp;keV
| 7.9(6)&nbsp;s
| β+
| 141Gd
| 11/2−#
|
|-id=Terbium-142
| rowspan=3|142Tb
| rowspan=3 style="text-align:right" | 65
| rowspan=3 style="text-align:right" | 77
| rowspan=3|141.93928(75)
| rowspan=3|597(17)&nbsp;ms
| β+ (96.8%)
| 142Gd
| rowspan=3|1+
| rowspan=3|
|-
| EC (3.2%)
| 142Gd
|-
| β+, p (0.0022%)
| 141Eu
|-id=Terbium-142m1
| style="text-indent:1em" | 142m1Tb
| colspan="3" style="text-indent:2em" | 279.7(4)&nbsp;keV
| 303(17)&nbsp;ms
| IT
| 142Tb
| 5−
| 
|-id=Terbium-142m2
| style="text-indent:1em" | 142m2Tb
| colspan="3" style="text-indent:2em" | 652.1(6)&nbsp;keV
| 26(1)&nbsp;μs
| IT
| 142Tb
| 8+
|
|-id=Terbium-143
| 143Tb
| style="text-align:right" | 65
| style="text-align:right" | 78
| 142.935137(55)
| 12(1)&nbsp;s
| β+
| 143Gd
| (11/2−)
|
|-id=Terbium-143m
| style="text-indent:1em" | 143mTb
| colspan="3" style="text-indent:2em" | 0(100)#&nbsp;keV
| 17(4)&nbsp;s
| 
| 
| 5/2+#
|
|-id=Terbium-144
| 144Tb
| style="text-align:right" | 65
| style="text-align:right" | 79
| 143.933045(30)
| ~1&nbsp;s
| β+
| 144Gd
| 1+
| 
|-id=Terbium-144m1
| rowspan=2 style="text-indent:1em" | 144m1Tb
| rowspan=2 colspan="3" style="text-indent:2em" | 396.9(5)&nbsp;keV
| rowspan=2|4.25(15)&nbsp;s
| IT (66%)
| 144Tb
| rowspan=2|6−
| rowspan=2|
|-
| β+ (34%)
| 144Gd
|-id=Terbium-144m2
| style="text-indent:1em" | 144m2Tb
| colspan="3" style="text-indent:2em" | 476.2(5)&nbsp;keV
| 2.8(3)&nbsp;μs
| IT
| 144Tb
| (8−)
|
|-id=Terbium-144m3
| style="text-indent:1em" | 144m3Tb
| colspan="3" style="text-indent:2em" | 517.1(5)&nbsp;keV
| 670(60)&nbsp;ns
| IT
| 144Tb
| (9+)
|
|-id=Terbium-144m4
| style="text-indent:1em" | 144m4Tb
| colspan="3" style="text-indent:2em" | 544.5(6)&nbsp;keV
| 144Tb
| (10+)
|
|-id=Terbium-145
| 145Tb
| style="text-align:right" | 65
| style="text-align:right" | 80
| 144.92872(12)
| 30.9(6)&nbsp;s
| β+
| 145Gd
| (11/2−)
|
|-id=Terbium-145m
| style="text-indent:1em" | 145mTb
| colspan="3" style="text-indent:2em" | 860(230)&nbsp;keV
| 
| 
| 
| (3/2+)
|
|-id=Terbium-146
| 146Tb
| style="text-align:right" | 65
| style="text-align:right" | 81
| 145.927253(48)
| 8(4)&nbsp;s
| β+
| 146Gd
| 1+
|
|-id=Terbium-146m1
| style="text-indent:1em" | 146m1Tb
| colspan="3" style="text-indent:2em" | 150(100)#&nbsp;keV
| 24.1(5)&nbsp;s
| β+
| 146Gd
| 5−
|
|-id=Terbium-146m2
| style="text-indent:1em" | 146m2Tb
| colspan="3" style="text-indent:2em" | 930(100)#&nbsp;keV
| 1.18(2)&nbsp;ms
| IT
| 146Tb
| 10+
|
|-id=Terbium-147
| 147Tb
| style="text-align:right" | 65
| style="text-align:right" | 82
| 146.9240546(87)
| 1.64(3)&nbsp;h
| β+
| 147Gd
| (1/2+)
|
|-id=Terbium-147m
| style="text-indent:1em" | 147mTb
| colspan="3" style="text-indent:2em" | 50.6(9)&nbsp;keV
| 1.87(5)&nbsp;min
| β+
| 147Gd
| (11/2−)
|
|-id=Terbium-148
| 148Tb
| style="text-align:right" | 65
| style="text-align:right" | 83
| 147.924275(13)
| 60(1)&nbsp;min
| β+
| 148Gd
| 2−
|
|-id=Terbium-148m1
| style="text-indent:1em" | 148m1Tb
| colspan="3" style="text-indent:2em" | 90.1(3)&nbsp;keV
| 2.20(5)&nbsp;min
| β+
| 148Gd
| (9)+
|
|-id=Terbium-148m2
| style="text-indent:1em" | 148m2Tb
| colspan="3" style="text-indent:2em" | 8618.6(10)&nbsp;keV
| 1.310(7)&nbsp;μs
| IT
| 148Tb
| (27+)
|
|-id=Terbium-149
| rowspan=2|149Tb
| rowspan=2 style="text-align:right" | 65
| rowspan=2 style="text-align:right" | 84
| rowspan=2|148.9232538(39)
| rowspan=2|4.118(25)&nbsp;h
| β+ (83.3%)
| 149Gd
| rowspan=2|1/2+
| rowspan=2|
|-
| α (16.7%)
| 145Eu
|-id=Terbium-149m
| rowspan=2 style="text-indent:1em" | 149mTb
| rowspan=2 colspan="3" style="text-indent:2em" | 35.78(13)&nbsp;keV
| rowspan=2|4.16(4)&nbsp;min
| β+ (99.98%)
| 149Gd
| rowspan=2|11/2−
| rowspan=2|
|-
| α (0.022%)
| 145Eu
|-id=Terbium-150
| 150Tb
| style="text-align:right" | 65
| style="text-align:right" | 85
| 149.9236648(79)
| 3.48(16)&nbsp;h
| β+
| 150Gd
| (2)−
| 
|-id=Terbium-150m
| style="text-indent:1em" | 150mTb
| colspan="3" style="text-indent:2em" | 461(27)&nbsp;keV
| 5.8(2)&nbsp;min
| β+
| 150Gd
| 9+
| 
|-id=Terbium-151
| rowspan=2|151Tb
| rowspan=2 style="text-align:right" | 65
| rowspan=2 style="text-align:right" | 86
| rowspan=2|150.9231090(44)
| rowspan=2|17.609(1)&nbsp;h
| β+ (99.99%)
| 151Gd
| rowspan=2|1/2+
| rowspan=2|
|-
| α (.0095%)
| 147Eu
|-id=Terbium-151m
| rowspan=2 style="text-indent:1em" | 151mTb
| rowspan=2 colspan="3" style="text-indent:2em" | 99.53(5)&nbsp;keV
| rowspan=2|25(3)&nbsp;s
| IT (93.4%)
| 151Tb
| rowspan=2|11/2−
| rowspan=2|
|-
| β+ (6.6%)
| 151Gd
|-id=Terbium-152
| rowspan=3|152Tb
| rowspan=3 style="text-align:right" | 65
| rowspan=3 style="text-align:right" | 87
| rowspan=3|151.924082(43)
| rowspan=3|17.8784(95)&nbsp;h
| EC (83%)
| rowspan=2|***<sup>152</sup>Gd***
| rowspan=3|2−
| rowspan=3|
|-
| β+ (17%)
|-
| α (−7%)
| 148Eu
|-id=Terbium-152m1
| style="text-indent:1em" | 152m1Tb
| colspan="3" style="text-indent:2em" | 342.15(16)&nbsp;keV
| 960(10)&nbsp;ns
| IT
| 152Tb
| 5−
|
|-id=Terbium-152m2
| rowspan=2 style="text-indent:1em" | 152m2Tb
| rowspan=2 colspan="3" style="text-indent:2em" | 501.74(19)&nbsp;keV
| rowspan=2|4.2(1)&nbsp;min
| IT (78.9%)
| 152Tb
| rowspan=2|8+
| rowspan=2|
|-
| β+ (21.1%)
| ***<sup>152</sup>Gd***
|-id=Terbium-153
| 153Tb
| style="text-align:right" | 65
| style="text-align:right" | 88
| 152.9234417(42)
| 2.34(1)&nbsp;d
| β+
| 153Gd
| 5/2+
|
|-id=Terbium-153m
| style="text-indent:1em" | 153mTb
| colspan="3" style="text-indent:2em" | 163.175(5)&nbsp;keV
| 186(4)&nbsp;μs
| IT
| 153Tb
| 11/2−
|
|-id=Terbium-154
| 154Tb
| style="text-align:right" | 65
| style="text-align:right" | 89
| 153.924684(49)
| 9.994(39)&nbsp;h
| β+
| **<sup>154</sup>Gd**
| 3−
|
|-id=Terbium-154m1
| style="text-indent:1em" | 154m1Tb
| colspan="3" style="text-indent:2em" | 130(50)#&nbsp;keV
| 21.5(4)&nbsp;h
| β+
| **<sup>154</sup>Gd**
| 0−
|
|-id=Terbium-154m2
| style="text-indent:1em" | 154m2Tb
| colspan="3" style="text-indent:2em" | 200(150)#&nbsp;keV
| 22.7(5)&nbsp;h
| β+
| **<sup>154</sup>Gd**
| 7−
|
|-id=Terbium-154m3
| style="text-indent:1em" | 154m3Tb
| colspan="3" style="text-indent:2em" | 405(150)#&nbsp;keV
| 513(42)&nbsp;ns
| IT
| 154Tb
|
|
|-id=Terbium-155
| 155Tb
| style="text-align:right" | 65
| style="text-align:right" | 90
| 154.923510(11)
| 5.32(6)&nbsp;d
| EC
| **<sup>155</sup>Gd**
| 3/2+
|
|-id=Terbium-156
| 156Tb
| style="text-align:right" | 65
| style="text-align:right" | 91
| 155.9247542(40)
| 5.35(10)&nbsp;d
| β+
| **<sup>156</sup>Gd**
| 3−
| 
|-id=Terbium-156m1
| style="text-indent:1em" | 156m1Tb
| colspan="3" style="text-indent:2em" | 88.4(2)&nbsp;keV
| 5.3(2)&nbsp;h
| IT
| 156Tb
| (0+)
|
|-id=Terbium-156m2
| style="text-indent:1em" | 156m2Tb
| colspan="3" style="text-indent:2em" | 100(50)#&nbsp;keV
| 24.4(10)&nbsp;h
| IT
| 156Tb
| (7−)
|
|-id=Terbium-157
| 157Tb
| style="text-align:right" | 65
| style="text-align:right" | 92
| 156.9240319(11)
| 71(7)&nbsp;y
| EC
| **<sup>157</sup>Gd**
| 3/2+
|
|-id=Terbium-158
| rowspan=2|158Tb
| rowspan=2 style="text-align:right" | 65
| rowspan=2 style="text-align:right" | 93
| rowspan=2|157.9254199(14)
| rowspan=2|180(11)&nbsp;y
| β+ (83.4%)
| **<sup>158</sup>Gd**
| rowspan=2|3−
| rowspan=2|
|-
| β− (16.6%)
| **<sup>158</sup>Dy**
|-id=Terbium-158m1
| style="text-indent:1em" | 158m1Tb
| colspan="3" style="text-indent:2em" | 110.3(12)&nbsp;keV
| 10.70(17)&nbsp;s
| IT
| 158Tb
| 0−
| 
|-id=Terbium-158m2
| style="text-indent:1em" | 158m2Tb
| colspan="3" style="text-indent:2em" | 388.39(11)&nbsp;keV
| 0.40(4)&nbsp;ms
| IT
| 158Tb
| 7−
|
|-id=Terbium-159
| 159Tb
| style="text-align:right" | 65
| style="text-align:right" | 94
| 158.9253537(12)
| colspan=3 align=center|**Stable**
| 3/2+
| 1.0000
|-id=Terbium-160
| 160Tb
| style="text-align:right" | 65
| style="text-align:right" | 95
| 159.9271746(12)
| 72.3(2)&nbsp;d
| β−
| **<sup>160</sup>Dy**
| 3−
|
|-id=Terbium-161
| 161Tb
| style="text-align:right" | 65
| style="text-align:right" | 96
| 160.9275768(13)
| 6.948(5)&nbsp;d
| β−
| **<sup>161</sup>Dy**
| 3/2+
|
|-id=Terbium-162
| 162Tb
| style="text-align:right" | 65
| style="text-align:right" | 97
| 161.9292754(22)
| 7.60(15)&nbsp;min
| β−
| **<sup>162</sup>Dy**
| (1−)
|
|-id=Terbium-162m
| style="text-indent:1em" | 162mTb
| colspan="3" style="text-indent:2em" | 286(3)&nbsp;keV
| 10#&nbsp;min
| 
| 
| 4−#
|
|-id=Terbium-163
| 163Tb
| style="text-align:right" | 65
| style="text-align:right" | 98
| 162.9306536(44)
| 19.5(3)&nbsp;min
| β−
| **<sup>163</sup>Dy**
| 3/2+
|
|-id=Terbium-164
| 164Tb
| style="text-align:right" | 65
| style="text-align:right" | 99
| 163.9333276(20)
| 3.0(1)&nbsp;min
| β−
| **<sup>164</sup>Dy**
| (5+)
|
|-id=Terbium-164m
| style="text-indent:1em" | 164mTb
| colspan="3" style="text-indent:2em" | 145(12)&nbsp;keV
| 2#&nbsp;min
| 
| 
| 2+#
|
|-id=Terbium-165
| 165Tb
| style="text-align:right" | 65
| style="text-align:right" | 100
| 164.9349552(17)
| 2.11(10)&nbsp;min
| β−
| 165Dy
| (3/2+)
|
|-id=Terbium-165m
| style="text-indent:1em" | 165mTb
| colspan="3" style="text-indent:2em" | 207(5)&nbsp;keV
| 0.81(8)&nbsp;μs
| IT
| 165Tb
| (7/2−)
|
|-id=Terbium-166
| 166Tb
| style="text-align:right" | 65
| style="text-align:right" | 101
| 165.9379397(16)
| 27.1(15)&nbsp;s
| β−
| 166Dy
| (1−)
|
|-id=Terbium-166m
| style="text-indent:1em" | 166mTb
| colspan="3" style="text-indent:2em" | 159.0(15)&nbsp;keV
| 3.5(4)&nbsp;μs
| IT
| 166Tb
| 4−#
|
|-id=Terbium-167
| 167Tb
| style="text-align:right" | 65
| style="text-align:right" | 102
| 166.9400070(21)
| 18.9(16)&nbsp;s
| β−
| 167Dy
| (3/2+)
|
|-id=Terbium-167m
| style="text-indent:1em" | 167mTb
| colspan="3" style="text-indent:2em" | 200(6)&nbsp;keV
| 1.2(1)&nbsp;μs
| IT
| 167Tb
| (7/2−)
|
|-id=Terbium-168
| 168Tb
| style="text-align:right" | 65
| style="text-align:right" | 103
| 167.9433371(45)
| 9.4(4)&nbsp;s
| β−
| 168Dy
| (4−)
|
|-id=Terbium-168m
| style="text-indent:1em" | 168mTb
| colspan="3" style="text-indent:2em" | 211(1)&nbsp;keV
| 0.71(3)&nbsp;μs
| IT
| 168Tb
| (6+)
|
|-id=Terbium-169
| 169Tb
| style="text-align:right" | 65
| style="text-align:right" | 104
| 168.94581(32)#
| 5.13(32)&nbsp;s
| β−
| 169Dy
| 3/2+#
|
|-id=Terbium-170
| 170Tb
| style="text-align:right" | 65
| style="text-align:right" | 105
| 169.94986(32)#
| 960(78)&nbsp;ms
| β−
| 170Dy
| 2−#
|
|-id=Terbium-171
| 171Tb
| style="text-align:right" | 65
| style="text-align:right" | 106
| 170.95301(43)#
| 1.23(10)&nbsp;s
| β−
| 171Dy
| 3/2+#
|
|-id=Terbium-172
| 172Tb
| style="text-align:right" | 65
| style="text-align:right" | 107
| 171.95739(54)#
| 760(190)&nbsp;ms
| β−
| 172Dy
| 6+#
|
|-id=Terbium-173
| 173Tb
| style="text-align:right" | 65
| style="text-align:right" | 108
| 172.96081(54)#
| 400#&nbsp;ms[>550&nbsp;ns]
| 
| 
| 3/2+#
|
|-id=Terbium-174
| 174Tb
| style="text-align:right" | 65
| style="text-align:right" | 109
| 173.96568(54)#
| 240#&nbsp;ms[>550&nbsp;ns]
| 
| 
| 2−#
|

## Наводи

Категорија:Списоци на изотопи по елемент
Категорија:Тербиум
Категорија:Изотопи на тербиумот