Isotopes of neon

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Isotopes of neon  (10Ne)
Main isotopes [1] Decay
Isotope abun­dance half-life (t1/2) mode pro­duct
20Ne90.5% stable
21Ne0.27%stable
22Ne9.25%stable
Standard atomic weight Ar°(Ne)
The abundances of the naturally occurring isotopes of neon Neon chart.png
The abundances of the naturally occurring isotopes of neon

Neon (10Ne) naturally occurs as three stable isotopes: 20
Ne, 21
Ne, and 22
Ne. Their stated natural abundances are those measured in air.

Contents

In addition, 17 artificial radioisotopes have been discovered, ranging from 15
Ne to 34
Ne, all short-lived: the most stable is 24
Ne with a half-life of 3.38 minutes. All others are under a minute, and most under a second. The isotopes lighter than the stable ones usually decay to fluorine or oxygen, while heavier ones decay to sodium.

List of isotopes


Nuclide
[n 1] 		Z N Isotopic mass (Da) [4]
[n 2] [n 3] 		Half-life [1]

[resonance width]		 Decay
mode [1]
[n 4] 		Daughter
isotope
[n 5] 		Spin and
parity [1]
[n 6] 		Natural abundance (mole fraction)
Excitation energyNormal proportion [1] Range of variation
15
Ne [5] 		10515.043170(70)770(300) ys
[590(230) keV]		 2p 13
O		(3/2−)
16
Ne		10616.025751(22)> 5.7 zs
[< 80 keV]		2p14
O		0+
17
Ne [n 7] 		10717.0177140(4)109.2(6) ms β+p (94.4(2.9)%)16
O		1/2−
β+α (3.51(1)%)13
N
β+ (2.1(2.9)%)17
F
β+pα (0.014(4)%)12
C
18
Ne		10818.0057087(4)1.66420(47) sβ+18
F		0+
19
Ne		10919.00188091(17)17.2569(19) sβ+19
F		1/2+
20
Ne		101019.9924401753(16)Stable0+0.9048(3)[0.8847, 0.9051] [6]
21
Ne		101120.99384669(4)Stable3/2+0.0027(1)[0.0027, 0.0171] [6]
22
Ne		101221.991385114(19)Stable0+0.0925(3)[0.0920, 0.0996] [6]
23
Ne		101322.99446691(11)37.15(3) sβ−23
Na		5/2+
24
Ne		101423.9936106(6)3.38(2) minβ−24
Na		0+
25
Ne		101524.997810(30)602(8) msβ−25
Na		1/2+
26
Ne		101626.000516(20)197(2) msβ− (99.87(3)%)26
Na		0+
β−n (0.13(3)%)25
Na
27
Ne		101727.007570(100)30.9(1.1) msβ− (98.0(5)%)27
Na		(3/2+)
β−n (2.0(5)%)26
Na
β−2n ?25
Na ?
28
Ne		101828.012130(140)18.8(2) msβ− (84.3(1.1)%)28
Na		0+
β−n (12(1)%)27
Na
β−2n (3.7(5)%)26
Na
29
Ne		101929.019750(160)14.7(4) msβ− (68.0(5.1)%)29
Na		(3/2−)
β−n (28(5)%)28
Na
β−2n (4(1)%)27
Na
30
Ne		102030.024990(270)7.22(18) msβ− (78.1(4.6)%)30
Na		0+
β−n (13(4)%)29
Na
β−2n (8.9(2.3)%)28
Na
31
Ne		102131.033470(290)3.4(8) msβ−31
Na		(3/2−)
β−n ?30
Na ?
β−2n ?29
Na ?
32
Ne		102232.039720(540)#3.5(9) msβ−32
Na		0+
β−n ?31
Na ?
β−2n ?30
Na ?
34
Ne		102434.056730(550)#2 ms# [> 1.5 μs]β− ?34
Na		0+
β−2n ?32
Na ?
β−n ?33
Na ?
This table header & footer:
  1. ↑ mNe – Excited nuclear isomer.
  2. ↑ ( ) – Uncertainty (1σ) is given in concise form in parentheses after the corresponding last digits.
  3. ↑ # – Atomic mass marked #: value and uncertainty derived not from purely experimental data, but at least partly from trends from the Mass Surface (TMS).
  4. ↑ Modes of decay:
    n: Neutron emission
    p: Proton emission
  5. ↑ Bold symbol as daughter – Daughter product is stable.
  6. ↑ ( ) spin value – Indicates spin with weak assignment arguments.
  7. ↑ Has 2 halo protons.

See also

Daughter products other than neon

References

  1. 1 2 3 4 5 Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3) 030001. doi:10.1088/1674-1137/abddae.
  2. ↑ "Standard Atomic Weights: Neon". CIAAW. 1985.
  3. ↑ Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry. doi:10.1515/pac-2019-0603. ISSN   1365-3075.
  4. ↑ Wang, Meng; Huang, W.J.; Kondev, F.G.; Audi, G.; Naimi, S. (2021). "The AME 2020 atomic mass evaluation (II). Tables, graphs and references*". Chinese Physics C. 45 (3) 030003. doi:10.1088/1674-1137/abddaf.
  5. ↑ Wamers, F.; Marganiec, J.; Aksouh, F.; Aksyutina, Yu.; Álvarez-Pol, H.; Aumann, T.; Beceiro-Novo, S.; Boretzky, K.; Borge, M. J. G.; Chartier, M.; Chatillon, A.; Chulkov, L. V.; Cortina-Gil, D.; Emling, H.; Ershova, O.; Fraile, L. M.; Fynbo, H. O. U.; Galaviz, D.; Geissel, H.; Heil, M.; Hoffmann, D. H. H.; Johansson, H. T.; Jonson, B.; Karagiannis, C.; Kiselev, O. A.; Kratz, J. V.; Kulessa, R.; Kurz, N.; Langer, C.; Lantz, M.; Le Bleis, T.; Lemmon, R.; Litvinov, Yu. A.; Mahata, K.; Müntz, C.; Nilsson, T.; Nociforo, C.; Nyman, G.; Ott, W.; Panin, V.; Paschalis, S.; Perea, A.; Plag, R.; Reifarth, R.; Richter, A.; Rodriguez-Tajes, C.; Rossi, D.; Riisager, K.; Savran, D.; Schrieder, G.; Simon, H.; Stroth, J.; Sümmerer, K.; Tengblad, O.; Weick, H.; Wimmer, C.; Zhukov, M. V. (4 April 2014). "First Observation of the Unbound Nucleus 15Ne" (PDF). Physical Review Letters. 112 (13) 132502. doi:10.1103/PhysRevLett.112.132502. PMID   24745409 – via APS.
  6. 1 2 3 Meija, Juris; Coplen, Tyler B.; Berglund, Michael; Brand, Willi A.; Bièvre, Paul De; Gröning, Manfred; Holden, Norman E.; Irrgeher, Johanna; Loss, Robert D.; Walczyk, Thomas; Prohaska, Thomas (2016-03-01). "Isotopic compositions of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry. 88 (3): 293–306. doi: 10.1515/pac-2015-0503 . hdl: 11858/00-001M-0000-0029-C408-7 . ISSN   1365-3075. S2CID   104472050.
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