List of isotopes / up to atomic number 10

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The list of isotopes is the overview page for easy access to all elements. The structure is also explained there and the legend for the table can also be found there. Decay energies were recalculated with the given masses and the mass-energy equivalent of .

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0 neutron

isotope Half-life
Type of decay / energy / proportion Type (keV;%) 		Spin /
parity 		Mass
(u)
01 Nn 610 s β -  (782.33) 1/2 + 01.008 664 915 85 (49)

1 hydrogen

isotope Half-life
Type of decay / energy / proportion Type (keV;%) 		Spin /
parity 		Mass
(u) 		NH
(%) 		Alternative
name
1 H. stable 1/2 + 01.007 825 032 23 (9) 099.9844 Protium
2 H stable 1+ 02.014 101 778 12 (12) 000.0156 Deuterium : D
3 H 12.33 a β -  (18.59) 1/2 + 03.016 049 277 9 (24)   ≈ 10 −15 Tritium : T
4 H 9.93696 · 10 −23  s n (1598.26) 2− 04.026 43 (11)
5 H. 8.01930 · 10 −23  s 2n (1799.54) 1/2 + 05,035 311 (96)
6 H. 3.265 · 10 −22  s n (916.67) 2− 06.044 96 (27)
7 H. 2.3 (6) · 10 −23  s 2n (55.11) 1/2 + 07.0527 (11 #)

2 helium

isotope Half-life
Type of decay / energy / proportion Type (keV;%) 		Spin /
parity 		Mass
(u) 		NH
(%)
3 He stable 1/2 + 03.016 029 3201 (25) 000.000137
4 He stable 0+ 04.002 603 254 13 (6) 099.999863
5 He 7.618 · 10 −22  s n (734.79) 3 / 2− 05,012 057 (21)
6 He 806.7 ms β -  (3505) 0+ 06.018 885 891 (57)
7 He 2.857 · 10 −21  s n (409.76) 3 / 2− 07.027 9907 (81)
8 He 119.0 ms β -  (10664; 84%), β - n (8631; 16%) 0+ 08.033 934 390 (95)
9 He 1.5 · 10 −21  s n (1254) 1 / 2− 09,043 946 (50)
10 He 2.7 · 10 −21  s 2n (1421) 0+ 10.052 79 (11)

3 lithium

isotope Half-life Decay energy
(MeV) 		Spin /
parity 		Type (s) of decay
(%) 		NH
(%) 		Mass
(u)
4 li 9.1 (9) · 10 −23 s 3.107 2− p 4.027 19 (23)
5 li 3.047 · 10 −22 s 1.965 3 / 2− p 5.012 538 (54)
6 li stable 1+ 007.5 6.015 122 8874 (16)
7 li stable 3 / 2− 092.5 7.016 003 4366 (45)
8 li 838 ms 16.004 2+ β - 8.022 486 246 (50)
8m1 Li 8.2 · 10 −15 s 0.9818 1+ IT 8.023 540 25
9 li 178.3 ms 13.606 (β - ), 11.941 (β - n) 3 / 2− β - = 50.5, β - n = 49.5 9.026 790 19 (20)
10 li 2.0 (5) · 10 −21 s 0.02598 1− n 10,035 483 (14)
10m1 Li 3.7 (15) · 10 −21 s 0.49378 1+ n 10.035 9852
10m2 li 1.35 (24) · 10 −21 s 0.50378 2+ n 10.035 995 94
11 li 8.5 ms 20.55 (β - ), 20.05 (β - n), 13.24 (β - 2n), 11.57 (β - 3n), 12.64 (β - αn) 3 / 2− β - = 8.97, β - n = 85, β - 2n = 4.1, β - 3n = 1.9, β - αn = 0.027 11.043 723 58 (66)
12 li 10 ns 0.1197 n 12.052 517 (16)
13 Li 13,062 63 (38)

4 beryllium

isotope Half-life Decay energy
(MeV) 		Spin /
parity 		Type (s) of decay
(%) 		NH
(%) 		Mass
(u)
5 Be 4.55 p 5.0399 (22 #)
6 Be 5.0 (3) · 10 −21 s 1.372 0+ 2p 6.019 7264 (58)
7 Be 53.12 d 0.862 3 / 2− ε 7.016 928 717 (76)
8 Be 6.7 (17) · 10 −17 s 0.09184 0+ α 8.005 305 102 (37)
9 Be stable 3 / 2− 100 9.012 183 065 (82)
10 Be 1.387 · 10 6 a 0.5568 0+ β - 10.013 534 695 (86)
10m1 Be 8 · 10 −13 s 6.1778 0+ IT 10.020 166 85
11 Be 13.81 s 11.509 (β - ), 0.05516 (β - n) 1/2 + β - = 96.9, β - n = 3.1 11.021 661 08 (26)
12 Be 23.6 ms 11.708 (β - ), 8.3385 (β - n) 0+ β - = 99, β - n = 1 12.026 9221 (20)
13 Be 2.01 ms 0.5104 5/2 + n 13,036 135 (11)
14 Be 4.35 ms 16.288 (β - ), 15.318 (β - n), 10.44 (β - 2n) 0+ β - = 14, β - n = 81, β - 2n = 5 14.042 89 (14)
15 Be <200 ns 1.737 5/2 + n = 100? 15.053 42 (43 #)
16 Be <200 ns 1.351 0+ 2n = 100? 16.061 67 (18)

5 boron

isotope Half-life Decay energy
(MeV) 		Spin /
parity 		Type (s) of decay
(%) 		NH
(%) 		Mass
(u)
6 B 7.415 2p = 100? 6.0508 (22 #)
7 B 3.50 · 10 −22 s 2.0126 3 / 2− p 7,029 712 (27)
8 B 770 ms 17.979 2+ β + 8.024 6073 (11)
9 B 8.439 · 10 −19 s 0.18584 (p), 0.27769 (2α) 3 / 2− p =?, 2α =? 9.013 329 65 (97)
10 B stable 3+ 019.9 10.012 936 95 (41)
11 B stable 3 / 2− 080.1 11.009 305 36 (45)
12 B 20.20 ms 13.369 (β - ), 6.0947 (β - 3α) 1+ β - = 98.42, β - 3α = 1.58 12.014 3527 (14)
13 B 17.36 ms 13.437 (β - ) 3 / 2− β - 13.017 7802 (12)
14 B 13.8 ms 20.644 2− β - 14.025 404 (23)
15 B 10.5 ms 19.085 3 / 2− β - 15,031 088 (23)
16 B <190 · 10 −12 s 0.08298 0 n 16,039 842 (26)
17 B 5.08 ms 22.74 3 / 2− β - 17.046 99 (18)
18 B 26 ns 0.00474 4− n 18.055 66 (18)
19 B 2.92 ms 26.361 (β - ), 25.787 (β - n), 21.604 (β - 2n) 3 / 2− β - = 12, β - n = 72, β - 2n = 16 19,063 10 (43 #)
20 B 20,072 07 (75 #)
21 B 21,081 29 (97 #)

6 carbon

isotope Half-life Decay energy
(MeV) 		Spin /
parity 		Type (s) of decay
(%) 		NH
(%) 		Mass
(u)
8 C 1.981 · 10 −21 s 0.0987 0+ p 8,037,643 (20)
9 C 126.5 ms 16.68 (β + p), 16.772 (β + 2α) 3 / 2− β + p = 61.6, β + 2α = 38.4 9,031 0372 (23)
10 C 19.255 s 3,648 0+ β + 10.016 853 31 (42)
10m1 C 10.7 · 10 −15 s 3.353 2+ IT 10,020 452 84
11 C 20.39 min 1,982 3 / 2− β + 11.011 4336 (10)
12 C stable 0+ 098.90 12
13 C stable 1 / 2− 001.10 13.003 354 835 07 (23)
14 C 5730 a 0.156 0+ β - 14.003 241 9884 (40)
15 C 2.449 s 9.772 1/2 + β - 15.010 599 26 (86)
16 C 0.747 s 8.0102 (β - ), 5.521 (β - n) 0+ β - = 1, β - n = 99 16.014 7013 (38)
17 C 0.193 s 13.16 (β - ), 7.275 (β - n) β - = 68, β - n = 32 17.022 577 (19)
18 C 0.095 s 11.804 (β - ), 8.98 (β - n) 0+ β - = 68.5, β - n = 31.5 18.026 751 (32)
19 C 0.046 s 16.56 (β - ), 11.23 (β - n) β - = 39, β - n = 61 19,034 80 (11)
20 C 0.014 s 15.79 (β - ), 13.63 (β - n) 0+ β - = 28, β - n = 72 20.040 32 (26)
21 C 30 ns 0.01415 1/2 + n 21,049 00 (43 #)
22 C 6.1 ms 20.265 (β - n), 15.681 (β - 2n) 0+ β - n = 63, β - 2n = 37 22.057 53 (26)
23 C 23.0689 (11 #)

7 nitrogen

isotope Half-life Decay energy
(MeV) 		Spin /
parity 		Type (s) of decay
(%) 		NH
(%) 		Mass
(u)
10 N. 2 · 10 −22 s 2,597 2− p 10,041 65 (43)
11 N. 5.49 · 10 −22 s 1,316 1/2 + p 11,026 091 (50)
12 N. 11,000 ms 17.338 1+ β + 12.018 6132 (11)
13 N. 9.965 min 2.220 1 / 2− β + 13.005 738 61 (29)
14 N. stable 1+ 099.634 14.003 074 004 43 (20)
14m1 N 13.2 · 10 −15 s 8.49 4− IT 14.012 188 38
14m2 N. 73 · 10 −15 s 8,964 5+ IT 14.012 697 24
14m3 N 9 · 10 −15 s 9.129 3+ IT 14.012 874 37
15 N. stable 1 / 2− 000.366 15,000 108 898 88 (64)
16 N. 7.13 s 10.421 (β - ) 2− β - 16.006 1019 (25)
16m1 N 7.3 ms 0.11982 0 IT 16.006 230 53
17 N. 4.173 s 8.680 (β - ), 4.536 (β - n) 1 / 2− β - = 4.9, β - n = 95.1 17.008 449 (16)
18 N. 624 ms 13.896 (β - ), 5.851 (β - n), 7.669 (β - α) 1− β - = 73.5, β - n = 14.3, β - α = 12.2 18.014 078 (20)
19 N. 304 ms 12.523 (β - ), 8.567 (β - n) 1 / 2− β - = 37.6, β - n = 62.4 19.017 022 (18)
20 N. 100 ms 17.97 (β - ), 10.36 (β - n) β - = 33.9, β - n = 66.1 20,023 366 (60)
21 N. 85 ms 17.19 (β - ), 13.38 (β - n) 1 / 2− β - = 20, β - n = 80 21,027 11 (10)
22 N. 24 ms 22.75 (β - ), 15.9 (β - n) β - = 65, β - n = 35 22,034 39 (21)
23 N. 14.5 ms 23.7 β - 23,041 14 (32 #)
24 N. 52 ns 0.545 n 24,050 39 (43 #)
25 N. 0.973 1 / 2− n 25,060 10 (54 #)

8 oxygen

isotope Half-life Decay energy
(MeV) 		Spin /
parity 		Type (s) of decay
(%) 		NH
(%) 		Mass
(u)
12 O 1.14275 · 10 −21 s 0.3223 0+ p 12,034 262 (26)
13 O 8.58 ms 15.826 3 / 2− β + p 13,024 815 (10)
14 O 70.606 s 5.144 0+ β + 14.008 596 36 (12)
15 O 122.24 s 2.754 1 / 2− β + 15.003 065 62 (53)
16 O stable 0+ 099.762 15.994 914 619 57 (17)
17 O stable 5/2 + 000.038 16.999 131 756 50 (69)
18 O stable 0+ 000.200 17.999 159 612 86 (76)
19 O 26.91 s 4.82 5/2 + β - 19.003 5780 (28)
20 O 13.51 s 3.814 0+ β - 20.004 075 35 (95)
21 O 3.42 s 8.11 5/2 + β - 21.008 655 (13)
22 O 2.25 s 6.49 0+ β - 22.009 966 (61)
23 O 82 ms 11.307 (β - ), 3.756 (β - n) 1/2 + β - = 69, β - n = 31 23,015 696 (97)
24 O 61 ms 10.94 (β - ), 7.115 (β - n) 0+ β - = 42, β - n = 58 24,019 86 (12)
25 O 50 ns 0.77789 3/2 + n 25.029 36 (12)
26 O 40 ns 0.0933 0+ 2n 26,037 29 (17)
27 O 260 ns 1.644 n 27.047 72 (54 #)
28 O 100 ns 1.202 0+ 2n 28.055 91 (75 #)

9 fluorine

isotope Half-life Decay energy
(MeV) 		Spin /
parity 		Type (s) of decay
(%) 		NH
(%) 		Mass
(u)
14 F. 1.56 2− p 14.034 315 (44)
15 F. 4.10 · 10 −22 s 1.51 1/2 + p 15,018 043 (67)
16 F. 11 · 10 −21 s 0.536 0 p 16.011 4657 (89)
17 F. 64.49 s 2.761 5/2 + β + 17.002 095 24 (27)
18 F 109.771 min 0.633 (β + ), 1.656 (ε) 1+ β + = 96.86, ε = 3.14 18,000 937 33 (50)
18m1 F 46 · 10 −15 s 4.86 1− IT 18.006 154 63
18m2 F 21 · 10 −15 s 5.297 4+ IT 18.006 624 41
18m3 F 44 · 10 −15 s 5.502 3− IT 18.006 843 84
18m4 F 10 · 10 −15 s 5.786 2− IT 18.007 148 73
19 F stable 1/2 + 100 18.998 403 162 73 (92)
19m1 F 10.7 · 10 −15 s 4,683 5 / 2− IT 19.003 430 51
19m2 F 21 · 10 −15 s 5.107 5/2 + IT 19.003 8858
19m3 F 1 · 10 −16 s 5.337 1/2 + IT 19.004 133 15
19m4 F 1 s 5.464 7/2 + IT 19.004 268 95
19m5 F 9 · 10 −16 s 5.621 5 / 2− IT 19.004 438 03
20 F 11.163 s 7.025 2+ β - 19.999 981 252 (31)
21 F 4.158 s 5.684 5/2 + β - 20.999 9489 (19)
22 F. 4.23 s 10,818 3+ β - 22.002 999 (13)
23 F. 2.23 s 8,467 5/2 + β - 23.003 557 (54)
24 F. 400 ms 13.51 3+ β - 24.008 115 (78)
25 F 50 ms 13.423 (β - ), 9.244 (β - n) 5/2 + β - = 86, β - n = 14 25.012 199 (81)
26 F. 10.2 ms 18.186 (β - ), 12.653 (β - n) 1+ β - = 89, β - n = 11 26,020 038 (83)
27 F. 4.9 ms 17.593 (β - ), 16.078 (β - n) 5/2 + β - = 23, β - n = 77 27.026 44 (20)
28 F. 40 ns 0.219 n = 100? 28,035 34 (21)
29 F. 2.6 ms 20.265 5/2 + β - n 29.042 54 (54 #)
30 F 260 ns 0.415 n 30.051 65 (64 #)
31 F. > 260 ns 27.787 (β - ), 24.512 (β - n) β - =?, β - n =? 31.059 71 (56 #)

10 neon

isotope Half-life Decay energy
(MeV) 		Spin /
parity 		Type (s) of decay
(%) 		NH
(%) 		Mass
(u)
16 Ne 9 · 10 −21 s 1.4 0+ 2p 16.025 750 (22)
17 Ne 109.2 ms 13.948 1 / 2− β + p 17.017 713 96 (38)
18 Ne 1.672 s 4,446 0+ β + 18.005 708 70 (39)
19 Ne 17.22 s 3.2395 1/2 + β + 19.001 880 91 (17)
20 Ne stable 0+ 090.48 19.992 440 1762 (17)
20m1 Ne 0.139 ps 5.621 3− IT 19.998 475 03
21 Ne stable 3/2 + 000.27 20.993 846 685 (41)
22 Ne stable 0+ 009.25 21,991 385 114 (18)
23 Ne 37.24 s 13.69 5/2 + β - 22.994 466 91 (11)
24 Ne 3.38 min 2.47 0+ β - 23.993 610 65 (55)
25 Ne 602 ms 7.30 3/2 + β - 24,997 789 (48)
26 Ne 197 ms 7.34 (β - ), 1.766 (β - n) 0+ β - = 99.87, β - n = 0.13 26,000 515 (20)
27 Ne 32 ms 12.55 (β - ), 5.825 (β - n) 3/2 + β - = 98, β - n = 2 27.007 553 (70)
28 Ne 17 ms 12.278 (β - ), 8.7936 (β - n), 2.0079 (β - 2n) 0+ β - = 84.5, β - n = 11.9, β - 2n = 3.6 28.012 12 (10)
29 Ne 14.8 ms 15.717 (β - ), 11.314 (β - n), 7.772 (β - 2n) 3/2 + β - = 68, β - n = 28, β - 2n = 4 29,019 75 (11)
30 Ne 7.3 ms 14.561 (β - ), 12.285 (β - n), 7.882 (β - 2n) 0+ β - = 78.1, β - n = 13, β - 2n = 8.9 30.024 73 (30)
31 Ne 3.4 ms 18.571 (β - ), 14.286 (β - n) β - =?, β - n =? 31.0331 (17)
32 Ne 3.5 ms 18.192 (β - ), 16.666 (β - n) 0+ β - =?, β - n =? 32,039 72 (54 #)
33 Ne 180 ns 0.9269 7 / 2− n 33,049 38 (64 #)
34 Ne 60 ns 21.555 (β - ), 20.805 (β - n) 0+ β - =?, β - n =? 34.056 73 (55 #)

swell

  1. ↑ a b LNE - LNHB / CEA Table de Radionucléides. (PDF) Retrieved May 27, 2019 (French).

See also list of isotopes # web links