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Isotopes of neon

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Isotopes of neon (10Ne)
Main isotopes Decay
abun­dance half-life (t1/2) mode pro­duct
Ne 90.5% stable
Ne 0.27% stable
Ne 9.25% stable
Standard atomic weight Ar°(Ne)
  • 20.1797±0.0006
  • 20.180±0.001 (abridged)
The abundances of the naturally occurring isotopes of neon

Neon (10Ne) possesses three stable isotopes:
Ne
,
Ne
, and
Ne
. In addition, 17 radioactive isotopes have been discovered, ranging from
Ne
to
Ne
, all short-lived. The longest-lived is
Ne
with a half-life of 3.38(2) min. All others are under a minute, most under a second. The least stable is
Ne
with a half-life of 770(300) ys (7.7(3.0)×10 s). See isotopes of carbon for notes about the measurement. Light radioactive neon isotopes usually decay to fluorine or oxygen, while heavier ones decay to sodium.

List of isotopes


Nuclide
 Z N Isotopic mass (Da)
 Half-life

 Decay
mode
 Daughter
isotope
 Spin and
parity
 Natural abundance (mole fraction)
Excitation energy Normal proportion Range of variation

Ne
 10 5 15.043170(70) 770(300) ys
 2p
O
 (3/2−)

Ne
 10 6 16.025751(22) > 5.7 zs
 2p
O
 0+

Ne
 10 7 17.0177140(4) 109.2(6) ms βp (94.4(2.9)%)
O
 		1/2−
βα (3.51(1)%)
N
β (2.1(2.9)%)
F
βpα (0.014(4)%)
C

Ne
 10 8 18.0057087(4) 1664.20(47) ms β
F
 0+

Ne
 10 9 19.00188091(17) 17.2569(19) s β
F
 		1/2+

Ne
 10 10 19.9924401753(16) Stable 0+ 0.9048(3)

Ne
 10 11 20.99384669(4) Stable 3/2+ 0.0027(1)

Ne
 10 12 21.991385114(19) Stable 0+ 0.0925(3)

Ne
 10 13 22.99446691(11) 37.15(3) s β
Na
 		5/2+

Ne
 10 14 23.9936106(6) 3.38(2) min β
Na
 0+

Ne
 10 15 24.997810(30) 602(8) ms β
Na
 1/2+

Ne
 10 16 26.000516(20) 197(2) ms β (99.87(3)%)
Na
 0+
βn (0.13(3)%)
Na

Ne
 10 17 27.007570(100) 30.9(1.1) ms β (98.0(5)%)
Na
 (3/2+)
βn (2.0(5)%)
Na
β2n ?
Na
 ?

Ne
 10 18 28.012130(140) 18.8(2) ms β (84.3(1.1)%)
Na
 0+
βn (12(1)%)
Na
β2n (3.7(5)%)
Na

Ne
 10 19 29.019750(160) 14.7(4) ms β (68.0(5.1)%)
Na
 (3/2−)
βn (28(5)%)
Na
β2n (4(1)%)
Na

Ne
 10 20 30.024990(270) 7.22(18) ms β (78.1(4.6)%)
Na
 0+
βn (13(4)%)
Na
β2n (8.9(2.3)%)
Na

Ne
 10 21 31.033470(290) 3.4(8) ms β
Na
 (3/2−)
βn ?
Na
 ?
β2n ?
Na
 ?

Ne
 10 22 32.039720(540)# 3.5(9) ms β
Na
 0+
βn ?
Na
 ?
β2n ?
Na
 ?

Ne
 10 24 34.056730(550)# 2 ms# β ?
Na
 0+
β2n ?
Na
 ?
βn ?
Na
 ?
This table header & footer:
  1. Ne – 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.
  8. ^ Decay mode shown is energetically allowed, but has not been experimentally observed to occur in this nuclide.
  • The isotopic composition refers to that in air.

References

  1. ^ 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 Ne" (PDF). Physical Review Letters. 112 (13): 132502. doi:10.1103/PhysRevLett.112.132502. PMID 24745409 – via APS.
  6. ^ 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.
Isotopes of the chemical elements
Group 1 2   3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Period Hydrogen and
alkali metals 		Alkaline
earth metals 		Pnicto­gens Chal­co­gens Halo­gens Noble gases
① Isotopes § ListH1 Isotopes § ListHe2
② Isotopes § ListLi3 Isotopes § ListBe4 Isotopes § ListB5 Isotopes § ListC6 Isotopes § ListN7 Isotopes § ListO8 Isotopes § ListF9 Isotopes § ListNe10
③ Isotopes § ListNa11 Isotopes § ListMg12 Isotopes § ListAl13 Isotopes § ListSi14 Isotopes § ListP15 Isotopes § ListS16 Isotopes § ListCl17 Isotopes § ListAr18
④ Isotopes § ListK19 Isotopes § ListCa20 Isotopes § ListSc21 Isotopes § ListTi22 Isotopes § ListV23 Isotopes § ListCr24 Isotopes § ListMn25 Isotopes § ListFe26 Isotopes § ListCo27 Isotopes § ListNi28 Isotopes § ListCu29 Isotopes § ListZn30 Isotopes § ListGa31 Isotopes § ListGe32 Isotopes § ListAs33 Isotopes § ListSe34 Isotopes § ListBr35 Isotopes § ListKr36
⑤ Isotopes § ListRb37 Isotopes § ListSr38 Isotopes § ListY39 Isotopes § ListZr40 Isotopes § ListNb41 Isotopes § ListMo42 Isotopes § ListTc43 Isotopes § ListRu44 Isotopes § ListRh45 Isotopes § ListPd46 Isotopes § ListAg47 Isotopes § ListCd48 Isotopes § ListIn49 Isotopes § ListSn50 Isotopes § ListSb51 Isotopes § ListTe52 Isotopes § ListI53 Isotopes § ListXe54
⑥ Isotopes § ListCs55 Isotopes § ListBa56 1 asterisk Isotopes § ListLu71 Isotopes § ListHf72 Isotopes § ListTa73 Isotopes § ListW74 Isotopes § ListRe75 Isotopes § ListOs76 Isotopes § ListIr77 Isotopes § ListPt78 Isotopes § ListAu79 Isotopes § ListHg80 Isotopes § ListTl81 Isotopes § ListPb82 Isotopes § ListBi83 Isotopes § ListPo84 Isotopes § ListAt85 Isotopes § ListRn86
⑦ Isotopes § ListFr87 Isotopes § ListRa88 1 asterisk Isotopes § ListLr103 Isotopes § ListRf104 Isotopes § ListDb105 Isotopes § ListSg106 Isotopes § ListBh107 Isotopes § ListHs108 Isotopes § ListMt109 Isotopes § ListDs110 Isotopes § ListRg111 Isotopes § ListCn112 Isotopes § ListNh113 Isotopes § ListFl114 Isotopes § ListMc115 Isotopes § ListLv116 Isotopes § ListTs117 Isotopes § ListOg118
⑧ Isotopes § ListUue119 Isotopes § ListUbn120
1 asterisk Isotopes § ListLa57 Isotopes § ListCe58 Isotopes § ListPr59 Isotopes § ListNd60 Isotopes § ListPm61 Isotopes § ListSm62 Isotopes § ListEu63 Isotopes § ListGd64 Isotopes § ListTb65 Isotopes § ListDy66 Isotopes § ListHo67 Isotopes § ListEr68 Isotopes § ListTm69 Isotopes § ListYb70  
1 asterisk Isotopes § ListAc89 Isotopes § ListTh90 Isotopes § ListPa91 Isotopes § ListU92 Isotopes § ListNp93 Isotopes § ListPu94 Isotopes § ListAm95 Isotopes § ListCm96 Isotopes § ListBk97 Isotopes § ListCf98 Isotopes § ListEs99 Isotopes § ListFm100 Isotopes § ListMd101 Isotopes § ListNo102
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