硼的同位素

硼（原子量：10.811(7)）共有14個已知同位素，質量數介於7-19之間，其中有2個是穩定的，其他都具有放射性。天然存在的硼同位素有2個，分別是10B和11B，皆為穩定同位素。其他放射性同位素都不出現在自然界中，只有在實驗室製造出來過，且半衰期都極短，非常不穩定。

圖表
|-
| 7B
| style="text-align:right" | 5
| style="text-align:right" | 2
| 7.02992(8)
| 350(50)×10−24 s
[1.4(2) MeV]
|
|
| (−)
|
|
|-
| 8B
| style="text-align:right" | 5
| style="text-align:right" | 3
| 8.0246072(11)
| 770(3) ms
| ,
| 2 **'
| 2+
|
|
|-
| 9B
| style="text-align:right" | 5
| style="text-align:right" | 4
| 9.0133288(11)
| 800(300)×10−21 s
[0.54(21) keV]
|
|
| −
|
|
|-
| 10B
| style="text-align:right" | 5
| style="text-align:right" | 5
| 10.0129370(4)
| colspan=3 align=center|**'
| 3+
| 0.199(7)
| 0.18929–0.20386
|-
|
| style="text-align:right" | 5
| style="text-align:right" | 6
| 11.0093054(4)
| colspan=3 align=center|**'
| −
| 0.801(7)
| 0.79614–0.81071
|-
| rowspan=2|12B
| rowspan=2 style="text-align:right" | 5
| rowspan=2 style="text-align:right" | 7
| rowspan=2|12.0143521(15)
| rowspan=2|20.20(2) ms
| (98.4%)
| **'
| rowspan=2|1+
| rowspan=2|
| rowspan=2|
|-
| , (1.6%)
|
|-
| rowspan=2|13B
| rowspan=2 style="text-align:right" | 5
| rowspan=2 style="text-align:right" | 8
| rowspan=2|13.0177802(12)
| rowspan=2|17.33(17) ms
| (99.72%)
| **'
| rowspan=2|−
| rowspan=2|
| rowspan=2|
|-
| β−, n (0.279%)
| **'
|-
| rowspan=2|14B
| rowspan=2 style="text-align:right" | 5
| rowspan=2 style="text-align:right" | 9
| rowspan=2|14.025404(23)
| rowspan=2|12.5(5) ms
| β− (93.96%)
|
| rowspan=2|2−
| rowspan=2|
| rowspan=2|
|-
| β−, n (6.04%)
| **'
|-
| rowspan=3|15B
| rowspan=3 style="text-align:right" | 5
| rowspan=3 style="text-align:right" | 10
| rowspan=3|15.031103(24)
| rowspan=3|9.87(7) ms
| β−, n (93.6%)
|
| rowspan=3|−
| rowspan=3|
| rowspan=3|
|-
| β− (6.0%)
|
|-
| β−, 2n (0.40%)
| **'
|-
| 16B
| style="text-align:right" | 5
| style="text-align:right" | 11
| 16.03981(6)
| −12 s
[17B
| rowspan=5 style="text-align:right" | 5
| rowspan=5 style="text-align:right" | 12
| rowspan=5|17.04699(18)
| rowspan=5|5.08(5) ms
| β−, n (63.0%)
|
| rowspan=5|(−)
| rowspan=5|
| rowspan=5|
|-
| β− (22.1%)
|
|-
| β−, 2n (11.0%)
|
|-
| β−, 3n (3.5%)
|
|-
| β−, 4n (0.40%)
| **'
|-
| 18B
| style="text-align:right" | 5
| style="text-align:right" | 13
| 18.05560(22)
| 19B
| style="text-align:right" | 5
| style="text-align:right" | 15
| 20.07451(59)
| > 912.4 ys
| n
|
| (1−, 2-)
|
|
|-
| 21B虽然太阳中微子只有少部分（80 ppm）源自硼-8的衰变，但硼-8衰变产生的中微子有约10 MeV的高能量，是直接探测暗物质的实验中重要的背景。

參考文獻

• Isotope masses from [https://web.archive.org/web/20080923134436/http://www.nndc.bnl.gov/amdc/index.html Ame2003 Atomic Mass Evaluation] by G. Audi, A.H. Wapstra, C. Thibault, J. Blachot and O. Bersillon in Nuclear Physics A729 (2003).
• Isotopic compositions and standard atomic masses from [http://www.iupac.org/publications/pac/2003/7506/7506x0683.html Atomic weights of the elements. Review 2000 (IUPAC Technical Report)] . Pure Appl. Chem. Vol. 75, No. 6, pp. 683-800, (2003) and [http://www.iupac.org/news/archives/2005/atomic-weights_revised05.html Atomic Weights Revised (2005)] .
• Half-life, spin, and isomer data selected from these sources. Editing notes on this article's talk page.

** Audi, Bersillon, Blachot, Wapstra. [http://amdc.in2p3.fr/web/nubase_en.html The Nubase2003 evaluation of nuclear and decay properties] , Nuc. Phys. A 729, pp. 3-128 (2003).
** National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the [http://www.nndc.bnl.gov/nudat2/ NuDat 2.1 database] (retrieved Sept. 2005).
* David R. Lide (ed.), Norman E. Holden in CRC Handbook of Chemistry and Physics, 85th Edition*, online version. CRC Press. Boca Raton, Florida (2005). Section 11, Table of the Isotopes.