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.
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.
01List of isotopes
| Nuclide |
Z | N | Isotopic mass (Da) |
Discovery year |
Half-life [resonance width] |
Decay mode |
Daughter isotope |
Spin and parity |
Natural abundance (mole fraction) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Normal proportion | Range of variation | ||||||||||||||||||
| 15 Ne |
10 | 5 | 15.043170(70) | 2014 | 770(300) ys [590(230) keV] |
2p | 13 O |
(3/2−) | |||||||||||
| 16 Ne |
10 | 6 | 16.025751(22) | 1977 | > 5.7 zs [< 80 keV] |
2p | 14 O |
0+ | |||||||||||
| 17 Ne |
10 | 7 | 17.0177140(4) | 1964 | 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) | 1954 | 1.66420(47) s | β+ | 18 F |
0+ | |||||||||||
| 19 Ne |
10 | 9 | 19.00188091(17) | 1939 | 17.2569(19) s | β+ | 19 F |
1/2+ | |||||||||||
| 20 Ne |
10 | 10 | 19.9924401753(16) | 1913 | Stable | 0+ | 0.9048(3) | [0.8847, 0.9051] | |||||||||||
| 21 Ne |
10 | 11 | 20.99384669(4) | 1928 | Stable | 3/2+ | 0.0027(1) | [0.0027, 0.0171] | |||||||||||
| 22 Ne |
10 | 12 | 21.991385114(19) | 1913 | Stable | 0+ | 0.0925(3) | [0.0920, 0.0996] | |||||||||||
| 23 Ne |
10 | 13 | 22.99446691(11) | 1936 | 37.15(3) s | β− | 23 Na |
5/2+ | |||||||||||
| 24 Ne |
10 | 14 | 23.9936106(6) | 1956 | 3.38(2) min | β− | 24 Na |
0+ | |||||||||||
| 25 Ne |
10 | 15 | 24.997810(30) | 1970 | 602(8) ms | β− | 25 Na |
1/2+ | |||||||||||
| 26 Ne |
10 | 16 | 26.000516(20) | 1970 | 197(2) ms | β− (99.87(3)%) | 26 Na |
0+ | |||||||||||
| β−n (0.13(3)%) | 25 Na | ||||||||||||||||||
| 27 Ne |
10 | 17 | 27.007570(100) | 1977 | 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) | 1979 | 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) | 1985 | 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) | 1985 | 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) | 1996 | 3.4(8) ms | β− | 31 Na |
(3/2−) | |||||||||||
| β−n ? | 30 Na | ||||||||||||||||||
| β−2n ? | 29 Na | ||||||||||||||||||
| 32 Ne |
10 | 22 | 32.039720(540)# | 1990 | 3.5(9) ms | β− | 32 Na |
0+ | |||||||||||
| β−n ? | 31 Na | ||||||||||||||||||
| β−2n ? | 30 Na | ||||||||||||||||||
| 34 Ne |
10 | 24 | 34.056730(550)# | 2002 | 2 ms# [> 1.5 μs] | β− ? | 34 Na |
0+ | |||||||||||
| β−2n ? | 32 Na | ||||||||||||||||||
| β−n ? | 33 Na | ||||||||||||||||||
| This table header & footer: | |||||||||||||||||||
Sources and credits
This article is adapted from the Wikipedia article “Isotopes of neon”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- Neon chart.png by User:Jacob S-589, CC BY 3.0
Fathomly is not affiliated with or endorsed by the Wikimedia Foundation. Spotted a problem? Tell us.