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Isotopes of neon

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Isotopes ofneon (₁₀Ne)

Main isotopes^[1]			Decay
Isotope	abundance	half-life(t_1/2)	mode	product
²⁰Ne	90.5%	stable
²¹Ne	0.27%	stable
²²Ne	9.25%	stable

Standard atomic weightA_r°(Ne)

20.1797±0.0006^[2]
20.180±0.001 (abridged)^[3]

The abundances of the naturally occurring isotopes of neon

Neon (₁₀Ne) naturally occurs as three stable isotopes:²⁰
Ne,²¹
Ne, and²²
Ne. Their stated natural abundances are those measured inair.

In addition, 17 artificial radioisotopes have been discovered, ranging from¹⁵
Ne to³⁴
Ne, all short-lived: the most stable is²⁴
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 tofluorine oroxygen, while heavier ones decay tosodium.

List of isotopes

[edit]

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)
Nuclide ^{[n 1]}	Excitation energy			Half-life^[1] [resonance width]	Decay mode^[1] ^{[n 4]}	Daughter isotope ^{[n 5]}	Spin and parity^[1] ^{[n 6]}	Normal proportion^[1]	Range of variation
¹⁵ Ne^[5]	10	5	15.043170(70)	770(300) ys [590(230) keV]	2p	¹³ O	(3/2−)
¹⁶ Ne	10	6	16.025751(22)	>5.7 zs [<80 keV]	2p	¹⁴ O	0+
¹⁷ Ne^{[n 7]}	10	7	17.0177140(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	10	8	18.0057087(4)	1.66420(47) s	β⁺	¹⁸ F	0+
¹⁹ Ne	10	9	19.00188091(17)	17.2569(19) s	β⁺	¹⁹ F	1/2+
²⁰ Ne	10	10	19.9924401753(16)	Stable			0+	0.9048(3)	[0.8847,0.9051]^[6]
²¹ Ne	10	11	20.99384669(4)	Stable			3/2+	0.0027(1)	[0.0027,0.0171]^[6]
²² Ne	10	12	21.991385114(19)	Stable			0+	0.0925(3)	[0.0920,0.0996]^[6]
²³ Ne	10	13	22.99446691(11)	37.15(3) s	β⁻	²³ Na	5/2+
²⁴ Ne	10	14	23.9936106(6)	3.38(2) min	β⁻	²⁴ Na	0+
²⁵ Ne	10	15	24.997810(30)	602(8) ms	β⁻	²⁵ Na	1/2+
²⁶ Ne	10	16	26.000516(20)	197(2) ms	β⁻ (99.87(3)%)	²⁶ Na	0+
²⁶ Ne	10	16	26.000516(20)	197(2) ms	β⁻n (0.13(3)%)	²⁵ Na	0+
²⁷ Ne	10	17	27.007570(100)	30.9(1.1) ms	β⁻ (98.0(5)%)	²⁷ Na	(3/2+)
					β⁻n (2.0(5)%)	²⁶ Na
					β⁻2n ?	²⁵ Na ?
²⁸ Ne	10	18	28.012130(140)	18.8(2) ms	β⁻ (84.3(1.1)%)	²⁸ Na	0+
					β⁻n (12(1)%)	²⁷ Na
					β⁻2n (3.7(5)%)	²⁶ Na
²⁹ Ne	10	19	29.019750(160)	14.7(4) ms	β⁻ (68.0(5.1)%)	²⁹ Na	(3/2−)
					β⁻n (28(5)%)	²⁸ Na
					β⁻2n (4(1)%)	²⁷ Na
³⁰ Ne	10	20	30.024990(270)	7.22(18) ms	β⁻ (78.1(4.6)%)	³⁰ Na	0+
					β⁻n (13(4)%)	²⁹ Na
					β⁻2n (8.9(2.3)%)	²⁸ Na
³¹ Ne	10	21	31.033470(290)	3.4(8) ms	β⁻	³¹ Na	(3/2−)
					β⁻n ?	³⁰ Na ?
					β⁻2n ?	²⁹ Na ?
³² Ne	10	22	32.039720(540)#	3.5(9) ms	β⁻	³² Na	0+
					β⁻n ?	³¹ Na ?
					β⁻2n ?	³⁰ Na ?
³⁴ Ne	10	24	34.056730(550)#	2 ms# [>1.5 μs]	β⁻ ?	³⁴ Na	0+
					β⁻2n ?	³² Na ?
					β⁻n ?	³³ Na ?
This table header & footer: view

^^mNe – Excitednuclear isomer.
^( ) – Uncertainty (1σ) is given in concise form in parentheses after the corresponding last digits.
^# – Atomic mass marked #: value and uncertainty derived not from purely experimental data, but at least partly from trends from the Mass Surface (TMS).
^Modes of decay:
n: Neutron emission
p: Proton emission
^Bold symbol as daughter – Daughter product is stable.
^( ) spin value – Indicates spin with weak assignment arguments.
^Has 2halo protons.

References

[edit]

^^a ^b ^c ^d ^eKondev, 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.
^"Standard Atomic Weights: Neon".CIAAW. 1985.
^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.
^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.
^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 Nucleus¹⁵Ne"(PDF).Physical Review Letters.112 (13) 132502.doi:10.1103/PhysRevLett.112.132502.PMID 24745409 – via APS.
^^a ^b ^cMeija, 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 thechemical 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 § List H 1																	Isotopes § List He 2
②	Isotopes § List Li 3	Isotopes § List Be 4											Isotopes § List B 5	Isotopes § List C 6	Isotopes § List N 7	Isotopes § List O 8	Isotopes § List F 9	Isotopes § List Ne 10
③	Isotopes § List Na 11	Isotopes § List Mg 12											Isotopes § List Al 13	Isotopes § List Si 14	Isotopes § List P 15	Isotopes § List S 16	Isotopes § List Cl 17	Isotopes § List Ar 18
④	Isotopes § List K 19	Isotopes § List Ca 20	Isotopes § List Sc 21	Isotopes § List Ti 22	Isotopes § List V 23	Isotopes § List Cr 24	Isotopes § List Mn 25	Isotopes § List Fe 26	Isotopes § List Co 27	Isotopes § List Ni 28	Isotopes § List Cu 29	Isotopes § List Zn 30	Isotopes § List Ga 31	Isotopes § List Ge 32	Isotopes § List As 33	Isotopes § List Se 34	Isotopes § List Br 35	Isotopes § List Kr 36
⑤	Isotopes § List Rb 37	Isotopes § List Sr 38	Isotopes § List Y 39	Isotopes § List Zr 40	Isotopes § List Nb 41	Isotopes § List Mo 42	Isotopes § List Tc 43	Isotopes § List Ru 44	Isotopes § List Rh 45	Isotopes § List Pd 46	Isotopes § List Ag 47	Isotopes § List Cd 48	Isotopes § List In 49	Isotopes § List Sn 50	Isotopes § List Sb 51	Isotopes § List Te 52	Isotopes § List I 53	Isotopes § List Xe 54
⑥	Isotopes § List Cs 55	Isotopes § List Ba 56	Isotopes § List Lu 71	Isotopes § List Hf 72	Isotopes § List Ta 73	Isotopes § List W 74	Isotopes § List Re 75	Isotopes § List Os 76	Isotopes § List Ir 77	Isotopes § List Pt 78	Isotopes § List Au 79	Isotopes § List Hg 80	Isotopes § List Tl 81	Isotopes § List Pb 82	Isotopes § List Bi 83	Isotopes § List Po 84	Isotopes § List At 85	Isotopes § List Rn 86
⑦	Isotopes § List Fr 87	Isotopes § List Ra 88	Isotopes § List Lr 103	Isotopes § List Rf 104	Isotopes § List Db 105	Isotopes § List Sg 106	Isotopes § List Bh 107	Isotopes § List Hs 108	Isotopes § List Mt 109	Isotopes § List Ds 110	Isotopes § List Rg 111	Isotopes § List Cn 112	Isotopes § List Nh 113	Isotopes § List Fl 114	Isotopes § List Mc 115	Isotopes § List Lv 116	Isotopes § List Ts 117	Isotopes § List Og 118
⑧	Isotopes § List Uue 119	Isotopes § List Ubn 120

			Isotopes § List La 57	Isotopes § List Ce 58	Isotopes § List Pr 59	Isotopes § List Nd 60	Isotopes § List Pm 61	Isotopes § List Sm 62	Isotopes § List Eu 63	Isotopes § List Gd 64	Isotopes § List Tb 65	Isotopes § List Dy 66	Isotopes § List Ho 67	Isotopes § List Er 68	Isotopes § List Tm 69	Isotopes § List Yb 70
			Isotopes § List Ac 89	Isotopes § List Th 90	Isotopes § List Pa 91	Isotopes § List U 92	Isotopes § List Np 93	Isotopes § List Pu 94	Isotopes § List Am 95	Isotopes § List Cm 96	Isotopes § List Bk 97	Isotopes § List Cf 98	Isotopes § List Es 99	Isotopes § List Fm 100	Isotopes § List Md 101	Isotopes § List No 102

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