氖的同位素

氖（原子量：20.1797(6)）共有19個已知同位素，質量數介於15-34之間，其中有3個是穩定的，其他都具有放射性。天然存在的氖同位素有3個，分別是20Ne、21Ne、22Ne，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

|-
| 15Ne
| style="text-align:right;" | 10
| style="text-align:right;" | 5
| 15.04317(7)
| 7.7(3)×10−22 s[0.59(23)−2.522(60) MeV]
| 2p
| 13O
| (3/2−)
|
|
|-
| 16Ne
| style="text-align:right" | 10
| style="text-align:right" | 6
| 16.025761(22)
| 9×10−21 s[122(37) keV]
| 2p
| 14O
| 0+
|
|
|-
| rowspan=3|17NeHas 2  protons
| rowspan=3 style="text-align:right" | 10
| rowspan=3 style="text-align:right" | 7
| rowspan=3|17.017672(29)
| rowspan=3|109.2(6) ms
| β+, p (96.0%)
| 16O
| rowspan=3|1/2–
| rowspan=3|
| rowspan=3|
|-
| β+, α (2.7%)
| 13N
|-
| β+ (1.3%)
| 17F
|-
| rowspan="3" | 18Ne
| rowspan="3" style="text-align:right" | 10
| rowspan="3" style="text-align:right" | 8
| rowspan="3"|18.0057082(3)
| rowspan="3"|1.672(8) s
| β+
| 18F
| rowspan="3"|0+
| rowspan="3"|
| rowspan="3"|
|-
| 2p
| 16O
|-
| 2He氦2發射
| 16O, 2He
|-
| 19Ne
| style="text-align:right" | 10
| style="text-align:right" | 9
| 19.0018802(3)
| 17.296(5) s+
| β+
| 19F
| 1/2+
|
|
|-
| 
| style="text-align:right" | 10
| style="text-align:right" | 10
| 19.9924401754(19)
| colspan=3 align=center|
| 0+
| 0.9048(3)
| 0.8847–0.9051
|-
| 21Ne
| style="text-align:right" | 10
| style="text-align:right" | 11
| 20.99384668(4)
| colspan=3 align=center|穩定
| 3/2+
| 0.0027(1)
| 0.0027–0.0171
|-
| 22Ne
| style="text-align:right" | 10
| style="text-align:right" | 12
| 21.991385114(19)
| colspan=3 align=center|穩定
| 0+
| 0.0925(3)
| 0.0920–0.0996
|-
| 23Ne
| style="text-align:right" | 10
| style="text-align:right" | 13
| 22.99446690(11)
| 37.24(12) s
| β−
| 23Na
| 5/2+
|
|
|-
| 24Ne
| style="text-align:right" | 10
| style="text-align:right" | 14
| 23.9936108(4)
| 3.38(2) min
| β−
| 24Na
| 0+
| 
|
|-
| 25Ne
| style="text-align:right" | 10
| style="text-align:right" | 15
| 24.997737(28)
| 602(8) ms
| β−
| 25Na
| (3/2)+
|
|
|-
| rowspan=2|26Ne
| rowspan=2 style="text-align:right" | 10
| rowspan=2 style="text-align:right" | 16
| rowspan=2|26.000461(29)
| rowspan=2|197(1) ms
| β− (99.87%)
| 26Na
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β−, n (.13%)
| 25Na
|-
| rowspan=2|27Ne
| rowspan=2 style="text-align:right" | 10
| rowspan=2 style="text-align:right" | 17
| rowspan=2|27.00759(12)
| rowspan=2|32(2) ms
| β− (98.0%)
| 27Na
| rowspan=2|(3/2+)#
| rowspan=2|
| rowspan=2|
|-
| β−, n (2.0%)
| 26Na
|-
| rowspan=2|28Ne
| rowspan=2 style="text-align:right" | 10
| rowspan=2 style="text-align:right" | 18
| rowspan=2|28.01207(16)
| rowspan=2|18.3(22) ms
| β− (78.0%)
| 28Na
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β−, n (22.0%)
| 27Na
|-
| 29Ne
| style="text-align:right" | 10
| style="text-align:right" | 19
| 29.01939(29)
| 15.6(5) ms
| β−
| 29Na
| (3/2+)#
|
|
|-
| 30Ne
| style="text-align:right" | 10
| style="text-align:right" | 20
| 30.02480(61)
| 5.8(2) ms
| β−
| 30Na
| 0+
|
|
|-
| rowspan=2|31Ne
| rowspan=2 style="text-align:right" | 10
| rowspan=2 style="text-align:right" | 21
| rowspan=2|31.03311(97)#
| rowspan=2|3.4(8) ms
| β−
| 31Na
| rowspan=2|7/2−#
| rowspan=2|
| rowspan=2|
|-
| β−, n
| 30Na
|-
| rowspan=2|32Ne
| rowspan=2 style="text-align:right" | 10
| rowspan=2 style="text-align:right" | 22
| rowspan=2|32.04002(86)#
| rowspan=2|3.5(9) ms
| β−, n
| 31Na
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β−
| 32Na
|-
| 33Ne
| style="text-align:right" | 10
| style="text-align:right" | 23
| 33.04938(86)#
| <260 ns
|
|
| 7/2−#
|
|
|-
| 34Ne
| style="text-align:right" | 10
| style="text-align:right" | 24
| 34.05703(87)#
| 1# ms [>1.5 µs]
|
|
| 0+
|
|
|}

 參考文獻 

 Isotope masses from 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 Atomic weights of the elements. Review 2000 (IUPAC Technical Report) . Pure Appl. Chem. Vol. 75, No. 6, pp. 683-800, (2003) and 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. 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 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.

Ne
Category:氖