Изотопи на ербиумот

Природниот ербиум (68Er) е составен од шест стабилни изотопи, при што 166Er е најзастапен (33,503% природна застапеност). Триесет и девет радиоизотопи се карактеризираат со помеѓу 74 и 112 неутрони, или 142 до 180 нуклеони, при што најстабилен е 169Er со време на полураспад од 9,4 дена, 172Er со време на полураспад од 49,3 часа, 160Er со време на полураспад од 28,58 часа, 165Er со време на полураспад од 10,36 часа и 171Er со време на полураспад од 7,516 часа. Сите преостанати радиоактивни изотопи имаат време на полураспад помалo од 3,5 часа, а поголемиот дел од нив имаат време на полураспад помалo од 4 минути. Овој елемент, исто така, има бројни метасостојби, при што најстабилна е 167mEr (t1/2 = 2,269 секунди).

Изотопите на ербиумot се движат по атомска тежина од 141,9723 u (142Er) до 179,9644 u (180Er). Примарниот режим на распаѓање пред најзастапениот стабилен изотоп, 166Er, е електронски зафат, а примарниот режим после е бета-распад. Примарните распадни производи пред 166Er се изотопи на холмиумот, а примарните производи потоа се изотопи на тулиумот. Сите изотопи на ербиумот се или радиоактивни или набљудувачки стабилни, што значи дека се предвидува дека се радиоактивни, но не е забележано вистинско распаѓање.

## Список на изотопите

|-id=Ербиум-143
| 143Er
| style="text-align:right" | 68
| style="text-align:right" | 75
| 142,96655(43)#
| 200#&nbsp;мс
| 
| 
| 9/2−#
| 
| 
|-id=Ербиум-144
| 144Er
| style="text-align:right" | 68
| style="text-align:right" | 76
| 143,96070(21)#
| 400#&nbsp;мс[>200&nbsp;нс]
| 
| 
| 0+
|
|
|-id=Ербиум-145
| rowspan=2| 145Er
| rowspan=2 style="text-align:right" | 68
| rowspan=2 style="text-align:right" | 77
| rowspan=2| 144,95787(22)#
| rowspan=2| 900(200)&nbsp;мс
| β<sup>+</sup>
| 145Ho
| rowspan=2|1/2+#
| rowspan=2|
| rowspan=2|
|-
| β+, p (?%)
| 144Dy
|-id=Ербиум-145m
| rowspan=2 style="text-indent:1em" | 145mEr
| rowspan=2 colspan="3" style="text-indent:2em" | 205(4)#&nbsp;keV
| rowspan=2| 1,0(3)&nbsp;с
| β+
| 145Ho
| rowspan=2| (11/2-)
| rowspan=2|
| rowspan=2|
|-
| β+, p (?%)
| 144Dy
|-id=Ербиум-146
| rowspan=2|146Er
| rowspan=2 style="text-align:right" | 68
| rowspan=2 style="text-align:right" | 78
| rowspan=2|145,952418(7)
| rowspan=2|1,7(6)&nbsp;с
| β+
| 146Ho
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β+, p (?%)
| 145Dy
|-id=Ербиум-147
| rowspan=2|147Er
| rowspan=2 style="text-align:right" | 68
| rowspan=2 style="text-align:right" | 79
| rowspan=2|146,94996(4)#
| rowspan=2|3,2(12)&nbsp;с
| β+
| 147Ho
| rowspan=2|(1/2+)
| rowspan=2|
| rowspan=2|
|-
| β+, p (?%)
| 146Dy
|-id=Ербиум-147m
| rowspan=2 style="text-indent:1em" | 147mEr
| rowspan=2 colspan="3" style="text-indent:2em" | 100(50)#&nbsp;keV
| rowspan=2| 1,6(2)&nbsp;с
| β+
| 147Ho
| rowspan=2| (11/2−)
| rowspan=2|
| rowspan=2|
|-
| β+, p (?%)
| 146Dy
|-id=Ербиум-148
| rowspan=2|148Er
| rowspan=2 style="text-align:right" | 68
| rowspan=2 style="text-align:right" | 80
| rowspan=2|147,944735(11)#
| rowspan=2|4,6(2)&nbsp;с
| β+ (99,85%)
| 148Ho
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β+, p (0,15%)
| 147Dy
|-id=Ербиум-148m
| style="text-indent:1em" | 148mEr
| colspan="3" style="text-indent:2em" | 2,9132(4)&nbsp;MeV
| 13(3)&nbsp;μс
| IT
| 148Er
| (10+)
|
|
|-id=Ербиум-149
| rowspan=2|149Er
| rowspan=2 style="text-align:right" | 68
| rowspan=2 style="text-align:right" | 81
| rowspan=2|148,94231(3)
| rowspan=2|4(2)&nbsp;с
| β+ (93%)
| 149Ho
| rowspan=2|(1/2+)
| rowspan=2|
| rowspan=2|
|-
| β+, p (7%)
| 148Dy
|-id=Ербиум-149m1
| rowspan=3 style="text-indent:1em" | 149m1Er
| rowspan=3 colspan="3" style="text-indent:2em" | 741,8(2)&nbsp;keV
| rowspan=3|8,9(2)&nbsp;с
| β+ (96,3%)
| 149Ho
| rowspan=3|(11/2−)
| rowspan=3|
| rowspan=3|
|-
| IT (3,5%)
| 149Er
|-
| β+, p (0,18%)
| 148Dy
|-id=Ербиум-149m2
| style="text-indent:1em" | 149m2Er
| colspan="3" style="text-indent:2em" | 2,6111(3)&nbsp;MeV
| 0,61(8)&nbsp;μс
| IT
| 149Er
| (19/2+)
|
|
|-id=Ербиум-149m3
| style="text-indent:1em" | 149m3Er
| colspan="3" style="text-indent:2em" | 3,302(7)&nbsp;MeV
| 4,8(1)&nbsp;μс
| IT
| 149Er
| (27/2−)
|
|
|-id=Ербиум-150
| 150Er
| style="text-align:right" | 68
| style="text-align:right" | 82
| 149,937916(18)
| 18,5(7)&nbsp;с
| β+
| 150Ho
| 0+
|
|
|-id=Ербиум-150m
| style="text-indent:1em" | 150mEr
| colspan="3" style="text-indent:2em" | 2,7965(5)&nbsp;MeV
| 2,55(10)&nbsp;μс
| IT
| 150Er
| 10+
|
|
|-id=Ербиум-151
| 151Er
| style="text-align:right" | 68
| style="text-align:right" | 83
| 150,937449(18)
| 23,5(20)&nbsp;с
| β+
| 151Ho
| (7/2−)
|
|
|-id=Ербиум-151m1
| rowspan=2 style="text-indent:1em" | 151m1Er
| rowspan=2 colspan="3" style="text-indent:2em" | 2,5860(5)&nbsp;MeV
| rowspan=2|580(20)&nbsp;мс
| IT (95,3%)
| 151Er
| rowspan=2|(27/2−)
| rowspan=2|
| rowspan=2|
|-
| β+ (4,7%)
| 151Ho
|-id=Ербиум-151m2
| style="text-indent:1em" | 151m2Er
| colspan="3" style="text-indent:2em" | 10,2866(10)&nbsp;MeV
| 0,42(5)&nbsp;μс
| IT
| 151Er
| (65/2-, 61/2+)
|
|
|-id=Ербиум-152
| rowspan=2|152Er
| rowspan=2 style="text-align:right" | 68
| rowspan=2 style="text-align:right" | 84
| rowspan=2|151,935050(9)
| rowspan=2|10,3(1)&nbsp;с
| α (90%)
| 148Dy
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β+ (10%)
| 152Ho
|-id=Ербиум-153
| rowspan=2|153Er
| rowspan=2 style="text-align:right" | 68
| rowspan=2 style="text-align:right" | 85
| rowspan=2|152,935086(10)
| rowspan=2|37,1(2)&nbsp;с
| α (53%)
| 149Dy
| rowspan=2|7/2−
| rowspan=2|
| rowspan=2|
|-
| β+ (47%)
| 153Ho
|-id=Ербиум-153m1
| style="text-indent:1em" | 153m1Er
| colspan="3" style="text-indent:2em" | 2,7982(10)&nbsp;MeV
| 373(9)&nbsp;нс
| IT
| 153Er
| (27/2-)
|
|
|-id=Ербиум-153m2
| style="text-indent:1em" | 153m2Er
| colspan="3" style="text-indent:2em" | 5,2481(10)&nbsp;MeV
| 248(32)&nbsp;нс
| IT
| 153Er
| (41/2-)
|
|
|-id=Ербиум-154
| rowspan=2|154Er
| rowspan=2 style="text-align:right" | 68
| rowspan=2 style="text-align:right" | 86
| rowspan=2|153,932791(5)
| rowspan=2|3,73(9)&nbsp;мин
| β+ (99,53%)
| 154Ho
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| α (0,47%)
| 150Dy
|-id=Ербиум-155
| rowspan=2|155Er
| rowspan=2 style="text-align:right" | 68
| rowspan=2 style="text-align:right" | 87
| rowspan=2|154,933216(7)
| rowspan=2|5,3(3)&nbsp;мин
| β+ (99,978%)
| 155Ho
| rowspan=2|7/2−
| rowspan=2|
| rowspan=2|
|-
| α (0,022%)
| 151Dy
|-id=Ербиум-156
| rowspan=2| 156Er
| rowspan=2 style="text-align:right" | 68
| rowspan=2 style="text-align:right" | 88
| rowspan=2| 155,931066(26)
| rowspan=2| 19,5(10)&nbsp;мин
| β+
| 156Ho
| rowspan=2| 0+
| rowspan=2|
| rowspan=2|
|-
| α (1,2%)
| 152Dy
|-id=Ербиум-157
| 157Er
| style="text-align:right" | 68
| style="text-align:right" | 89
| 156,931923(28)
| 18,65(10)&nbsp;мин
| β+
| 157Ho
| 3/2−
|
|
|-id=Ербиум-157m
| style="text-indent:1em" | 157mEr
| colspan="3" style="text-indent:2em" | 155,4(3)&nbsp;keV
| 76(6)&nbsp;мс
| IT
| 157Er
| 9/2+
|
|
|-id=Ербиум-158
| 158Er
| style="text-align:right" | 68
| style="text-align:right" | 90
| 157,929893(27)
| 2,29(6)&nbsp;ч
| EC
| 158Ho
| 0+
|
|
|-id=Ербиум-159
| 159Er
| style="text-align:right" | 68
| style="text-align:right" | 91
| 158,930691(4)
| 36(1)&nbsp;мин
| β+
| 159Ho
| 3/2−
|
|
|-id=Ербиум-159m1
| style="text-indent:1em" | 159m1Er
| colspan="3" style="text-indent:2em" | 182,602(24)&nbsp;keV
| 337(14)&nbsp;нс
| IT
| 159Er
| 9/2+
|
|
|-id=Ербиум-159m2
| style="text-indent:1em" | 159m2Er
| colspan="3" style="text-indent:2em" | 429,05(3)&nbsp;keV
| 590(60)&nbsp;нс
| IT
| 159Er
| 11/2−
|
|
|-id=Ербиум-160
| 160Er
| style="text-align:right" | 68
| style="text-align:right" | 92
| 159,929077(26)
| 28,58(9)&nbsp;ч
| EC
| 160Ho
| 0+
|
|
|-id=Ербиум-161
| 161Er
| style="text-align:right" | 68
| style="text-align:right" | 93
| 160,930004(9)
| 3,21(3)&nbsp;ч
| β+
| 161Ho
| 3/2−
|
|
|-id=Ербиум-161m
| style="text-indent:1em" | 161mEr
| colspan="3" style="text-indent:2em" | 396,44(4)&nbsp;keV
| 7,5(7)&nbsp;μс
| IT
| 161Er
| 11/2−
|
|
|-id=Ербиум-162
| 162Er
| style="text-align:right" | 68
| style="text-align:right" | 94
| 161,9287873(8)
| colspan=3 align=center|**[[Опсервациски стабилен]]**
| 0+
| 0,00139(5)
|
|-id=Ербиум-162m
| style="text-indent:1em" | 162mEr
| colspan="3" style="text-indent:2em" | 2,02601(13)&nbsp;MeV
| 88(16)&nbsp;нс
| IT
| **<sup>162</sup>Er**
| 7(-)
|
|
|-id=Ербиум-163
| 163Er
| style="text-align:right" | 68
| style="text-align:right" | 95
| 162,930040(5)
| 75,0(4)&nbsp;мин
| β+
| 163Ho
| 5/2−
| 
| 
|-id=Ербиум-163m
| style="text-indent:1em" | 163mEr
| colspan="3" style="text-indent:2em" | 445,5(6)&nbsp;keV
| 580(100)&nbsp;нс
| IT
| 163Er
| (11/2−)
|
|
|-id=Ербиум-164
| 164Er
| style="text-align:right" | 68
| style="text-align:right" | 96
| 163,9292077(8)
| colspan=3 align=center|**Опсервациски стабилен**
| 0+
| 0,01601(3)
|
|-id=Ербиум-165
| 165Er
| style="text-align:right" | 68
| style="text-align:right" | 97
| 164,9307335(10)
| 10,36(4)&nbsp;ч
| EC
| **<sup>165</sup>Ho**
| 5/2−
|
|
|-id=Ербиум-165m1
| style="text-indent:1em" | 165m1Er
| colspan="3" style="text-indent:2em" | 551,3(6)&nbsp;keV
| 250(30)&nbsp;нс
| IT
| 165Er
| 11/2-
|
|
|-id=Ербиум-165m2
| style="text-indent:1em" | 165m2Er
| colspan="3" style="text-indent:2em" | 1,8230(6)&nbsp;MeV
| 370(40)&nbsp;нс
| IT
| 165Er
| (19/2)
|
|
|-id=Ербиум-166
| 166Er
| style="text-align:right" | 68
| style="text-align:right" | 98
| 165,9303011(4)
| colspan=3 align=center|**Опсервациски стабилен**
| 0+
| 0,33503(36)
|
|-id=Ербиум-167
| 167Er
| style="text-align:right" | 68
| style="text-align:right" | 99
| 166,9320562(3)
| colspan=3 align=center|**Опсервациски стабилен**
| 7/2+
| 0,22869(9)
|
|-id=Ербиум-167m
| style="text-indent:1em" | 167mEr
| colspan="3" style="text-indent:2em" | 207,801(5)&nbsp;keV
| 2,269(6)&nbsp;с
| IT
| **<sup>167</sup>Er**
| 1/2−
|
|
|-id=Ербиум-168
| 168Er
| style="text-align:right" | 68
| style="text-align:right" | 100
| 167,93237828(28)
| colspan=3 align=center|**Опсервациски стабилен**
| 0+
| 0,26978(18)
|
|-id=Ербиум-168m
| style="text-indent:1em" | 168mEr
| colspan="3" style="text-indent:2em" | 1,0940383(16)&nbsp;MeV
| 109,0(7)&nbsp;нс
| IT
| **<sup>168</sup>Er**
| 4-
|
|
|-id=Ербиум-169
| 169Er
| style="text-align:right" | 68
| style="text-align:right" | 101
| 168,9345984(3)
| 9,392(18)&nbsp;д
| β−
| **<sup>169</sup>Tm**
| 1/2−
|
|
|-id=Ербиум-169m1
| style="text-indent:1em" | 169m1Er
| colspan="3" style="text-indent:2em" | 92,05(10)&nbsp;keV
| 285(20)&nbsp;нс
| IT
| 169Er
| (5/2)-
|
|
|-id=Ербиум-169m2
| style="text-indent:1em" | 169m2Er
| colspan="3" style="text-indent:2em" | 243,69(17)&nbsp;keV
| 200(10)&nbsp;нс
| IT
| 169Er
| 7/2+
|
|
|-id=Ербиум-170
| 170Er
| style="text-align:right" | 68
| style="text-align:right" | 102
| 169,9354719(15)
| colspan=3 align=center|**Опсервациски стабилен**
| 0+
| 0,14910(36)
|
|-id=Ербиум-171
| 171Er
| style="text-align:right" | 68
| style="text-align:right" | 103
| 170,93803746(15)
| 7,516(2)&nbsp;ч
| β−
| 171Tm
| 5/2−
|
|
|-id=Ербиум-171m
| style="text-indent:1em" | 171mEr
| colspan="3" style="text-indent:2em" | 198,61(9)&nbsp;keV
| 210(10)&nbsp;нс
| IT
| 171Er
| 1/2−
|
|
|-id=Ербиум-172
| 172Er
| style="text-align:right" | 68
| style="text-align:right" | 104
| 171,939363(4)
| 49,3(5)&nbsp;ч
| β−
| 172Tm
| 0+
|
|
|-
|-id=Ербиум-172m
| style="text-indent:1em" | 172mEr
| colspan="3" style="text-indent:2em" | 1,5009(3)&nbsp;MeV
| 579(62)&nbsp;нс
| IT
| 172Er
| (6+)
|
|
|-id=Ербиум-173
| 173Er
| style="text-align:right" | 68
| style="text-align:right" | 105
| 172,94240(21)#
| 1,434(17)&nbsp;мин
| β−
| 173Tm
| (7/2−)
|
|
|-id=Ербиум-174
| 174Er
| style="text-align:right" | 68
| style="text-align:right" | 106
| 173,94423(32)#
| 3,2(2)&nbsp;мин
| β−
| 174Tm
| 0+
|
|
|-id=Ербиум-174m
| style="text-indent:1em" | 174mEr
| colspan="3" style="text-indent:2em" | 1,1115(7)&nbsp;MeV
| 3,9(3)&nbsp;с
| IT
| 174Er
| 8-
|
|
|-id=Ербиум-175
| 175Er
| style="text-align:right" | 68
| style="text-align:right" | 107
| 174,94777(43)#
| 1,2(3)&nbsp;мин
| β−
| 175Tm
| 9/2+#
|
|
|-id=Ербиум-176
| 176Er
| style="text-align:right" | 68
| style="text-align:right" | 108
| 175,94994(43)#
| 12#&nbsp;с[>300&nbsp;нс]
| 
| 
| 0+
|
|
|-id=Ербиум-177
| 177Er
| style="text-align:right" | 68
| style="text-align:right" | 109
| 176,95399(54)#
| 8#&nbsp;с[>300&nbsp;нс]
| 
| 
| 1/2−#
|
|
|-id=Ербиум-178
| 178Er
| style="text-align:right" | 68
| style="text-align:right" | 110
| 177,95678(64)#
| 4#&nbsp;с[>300&nbsp;нс]
| 
| 
| 0+
|
|
|-id=Ербиум-179
| 179Er
| style="text-align:right" | 68
| style="text-align:right" | 111
| 178,96127(54)#
| 3#&nbsp;с[>550&nbsp;нс)]
| 
| 
| 3/2−#
| 
| 
|-id=Ербиум-180
| 180Er
| style="text-align:right" | 68
| style="text-align:right" | 112
| 179,96438(54)#
| 2#&nbsp;с[>550&nbsp;нс]
| 
| 
| 0+
| 
|

## Наводи

* Isotope masses from:
**
* Isotopic compositions and standard atomic masses from:
**
**
**
* Half-life, spin, and isomer data selected from the following sources.
**
**
**

Ербиум
Категорија:Ербиум
Категорија:Изотопи на ербиумот