Dieser Artikel ist eine Liste der Isotope aller bekannten Elemente der zweiten Periode.
Eine Übersicht über alle weiteren Isotope sowie eine Legende ist im Hauptartikel Liste der Isotope zu finden.
Isotop |
Halbwertszeit |
Zerfallsenergie in MeV |
spin / Parität |
Zerfallsart(en) in % |
Häufigkeit in %
|
4Li |
9,1(9) × 10−23 s |
6,03 |
2− |
p = 100 |
|
5Li |
3,047 × 10−22 s
|
1,97 |
3/2− |
p = 100 |
|
6Li |
stabil |
|
1+ |
|
7,5
|
7Li |
stabil |
|
3/2− |
|
92,5
|
8Li |
838 ms |
16,004 (β−) |
2+ |
β− = 100, β−2α = 100 |
|
9Li |
178,3 ms |
11,941 (β−), 13,606 (β−n) |
3/2− |
β− = 100, β−n2α = 49,5 |
|
10Li |
|
0,42 |
|
n = 100 |
|
11Li |
8,5 ms |
20,61 (β−), 20,11 (β−n) |
3/2− |
β− = 100, β−n = 85, β−2n = 4,1, β−2a3n = 1,9 |
|
Isotop |
Halbwertszeit |
Zerfallsenergie in MeV |
spin / Parität |
Zerfallsart(en) in % |
Häufigkeit in %
|
6Be |
5,0(3) × 10−21 s |
1,373 |
0+ |
2pα = 100 |
|
7Be |
53,12 d |
0,862 |
3/2− |
K = 100 |
|
8Be |
6,7(17) × 10−17 s |
6,8(17) × 10−6 |
0+ |
2α = 100 |
|
9Be |
stabil |
|
3/2− |
|
100
|
10Be |
1510000 a |
0,556 |
0+ |
β− = 100 |
|
11Be |
13,81 s |
11,506 (β−), 2,841 (β−α) |
1/2+ |
β− = 100, β−α = 3,1 |
|
12Be |
23,6 ms |
11,708 (β−), 8,337 (β−n) |
0+ |
β− = 100, β−n < 1 |
|
13Be |
2,01 ms |
0,9 |
(1/2,5/2)+ |
n = 100 |
|
14Be |
4,35 ms |
16,22 (β− = 100), 15,25 (β−n) |
0+ |
β− = 100, β−n = 81, β−2n = 5 |
|
Isotop |
Halbwertszeit |
Zerfallsenergie in MeV |
spin / Parität |
Zerfallsart(en) in % |
Häufigkeit in %
|
7B |
3,50(5) × 10−22 s |
2,20 |
(3/2−) |
XP = 100 |
|
8B |
770 ms |
17,979 (K/β+), 18,071 (K2α) |
2+ |
K/β+ = 100, K2α = 100 |
|
9B |
8,00(300) × 10−19 s |
0,54(21) × 10−3 |
3/2− |
2αP = 100 |
|
10B |
stabil |
|
3+ |
|
19,9
|
11B |
stabil |
|
3/2− |
|
80,1
|
12B |
20,20 ms |
13,369 |
1+ |
β− = 100, β−3α = 1,58 |
|
13B |
17,36 ms |
13,437 |
3/2− |
β− = 100, β−n = 0,28 |
|
14B |
13,8 ms |
20,644 |
2− |
β− = 100 |
|
15B |
10,5 ms |
19,094 |
3/2− |
β− = 100 |
|
16B |
<190 × 10−12 s |
0,10 |
(0) |
n = 100 |
|
17B |
5,08 ms |
22,68 |
(3/2−) |
β− = 100, β−n = ? |
|
18B |
26 ns |
|
4- |
n = 100 |
|
19B |
2,92 ms |
|
3/2− |
β− = 100, β−n = 72, β−2n = 16 |
|
Isotop |
Halbwertszeit |
Zerfallsenergie in MeV |
spin / Parität |
Zerfallsart(en) in % |
Häufigkeit in %
|
8C |
1,98739 × 10−21 s |
2,142 |
0+ |
Xp = 100 |
|
9C |
0,1265 s |
16,498 (K/β+), 16,775 (Kp2α), 16,683 (Kp) |
(3/2−) |
K/β+ = 100, Kp2α = ?, Kp = ? |
|
10C |
19,255 s |
3,648 |
0+ |
K/β+ = 100 |
|
11C |
20,39 min |
1,982 |
3/2− |
K/β+ = 100 |
|
12C |
stabil |
|
0+ |
|
98,90
|
13C |
stabil |
|
1/2− |
|
1,10
|
14C |
5730 a |
0,156 |
0+ |
β− = 100 |
|
15C |
2,449 s |
9,772 |
1/2+ |
β− = 100 |
|
16C |
0,747 s |
8,012 |
0+ |
β− = 100, β−n>98,8 |
|
17C |
0,193 s |
13,166 (β−), 7,283 (β−n) |
|
β− = 100, β−n = 32 |
|
18C |
0,095 s |
11,81 (β−), 8,98 (β−n) |
0+ |
β− = 100, β−n≈25 |
|
19C |
0,046 s |
16,97 (β−), 11,64 (β−n) |
|
β− = 100, β−n = 47 |
|
20C |
0,014 s |
15,79 (β−), 13,63 (β−n) |
0+ |
β− = 100, β−n = 72 |
|
21C |
30 ns |
|
1/2+ |
n = 100 |
|
22C |
6,1 ms |
|
0+ |
β− = 100, β−n = 61, β−2n = 37 |
|
Isotop |
Halbwertszeit |
Zerfallsenergie in MeV |
spin / Parität |
Zerfallsart(en) in % |
Häufigkeit in %
|
11N |
|
2,290 |
1/2+ |
p = ? |
|
12N |
11,000 ms |
17,338 |
1+ |
K/β+ = 100, K3α = 3,5 |
|
13N |
9,965 min |
2,220 |
1/2− |
K/β+ = 100 |
|
14N |
stabil |
|
1+ |
|
99,634
|
15N |
stabil |
|
1/2− |
|
0,366
|
16N |
7,13 s |
10,419 (β−) |
2− |
β− = 100, β−α = 0,00120 |
|
16m1N |
7,25 µs |
0,120 (IT), 10,539 (β−) |
0 |
IT, β− |
|
17N |
4,173 s |
8,680 (β−), 4,536 (β−n) |
1/2− |
β− = 100, β−n = 95,1 |
|
18N |
624 ms |
13,899 (β−), 7,627 (β−α) |
1- |
β− = 100, β−α = 12,2, β−n = 14,3 |
|
19N |
304 ms |
12,527 (β−), 8,571 (β−n) |
(1/2−) |
β− = 100, β−n = 62,4 |
|
20N |
100 ms |
17,97 (β−), 10,36 (β−n) |
|
β− = 100, β−n ≈ 61 |
|
21N |
85 ms |
17,17 (β−), 13,36 (β−n) |
1/2− |
β− = 100, β−n = 84 |
|
22N |
24 ms |
22,80 (β−), 15,95 (β−n) |
|
β− = 100, β−n = 35 |
|
23N |
14,5 ms |
|
|
β− = 100, β−n > 0 |
|
24N |
52 ns |
|
|
n = 100 |
|
Isotop |
Halbwertszeit |
Zerfallsenergie in MeV |
spin / Parität |
Zerfallsart(en) in % |
Häufigkeit in %
|
12O |
1,14275 × 10−21 s |
0,190 |
0+ |
2p = 60 |
|
13O |
8,58 ms |
17,765 |
(3/2−) |
K/β+ = 100, Kp = 12 |
|
14O |
70,606 s |
5,143 |
0+ |
K/β+ = 100 |
|
15O |
122,24 s |
2,754 |
1/2− |
K/β+ = 100 |
|
16O |
stabil |
|
0+ |
|
99,762
|
17O |
stabil |
|
5/2+ |
|
0,038
|
18O |
stabil |
|
0+ |
|
0,200
|
19O |
26,91 s |
4,821 |
5/2+ |
β− = 100 |
|
20O |
13,51 s |
3,814 |
0+ |
β− = 100 |
|
21O |
3,42 s |
8,109 |
(1/2,3/2,5/2)+ |
β− = 100 |
|
22O |
2,25 s |
6,49 |
0+ |
β− = 100 |
|
23O |
82 ms |
11,29 (β−), 3,75 (β−n) |
1/2+ |
β− = 100, β−n = 31 |
|
24O |
61 ms |
11,40 (β−), 7,60 (β−n) |
0+ |
β− = 100, β−n = 58 |
|
25O |
50 ns |
|
3/2+ |
n = 100 |
|
26O |
40 ns |
|
0+ |
n = 100 |
|
Isotop |
Halbwertszeit |
Zerfallsenergie in MeV |
spin / Parität |
Zerfallsart(en) in % |
Häufigkeit in %
|
14F |
|
3,20 |
(2−) |
p = 100 |
|
15F |
4,10 × 10−22 s |
1,48 |
(1/2+) |
p = 100 |
|
16F |
11 × 10−21 s |
0,536 |
0 |
p = 100 |
|
17F |
64,49 s |
2,761 |
5/2+ |
K/β+ = 100 |
|
18F |
109,771 min |
1,656 |
1+ |
K/β+ = 100 |
|
19F |
stabil |
|
1/2+ |
|
100
|
20F |
11,163 s |
7,025 |
2+ |
β− = 100 |
|
21F |
4,158 s |
5,684 |
5/2+ |
β− = 100 |
|
22F |
4,23 s |
10,818 |
4+,(3+) |
β− = 100 |
|
23F |
2,23 s |
8,48 |
(3/2,5/2)+ |
β− = 100 |
|
24F |
400 ms |
13,49 |
(1,2,3)+ |
β− = 100 |
|
25F |
50 ms |
|
5/2+ |
β− = 100, β−n = 14,5 |
|
26F |
10,2 ms |
|
1+ |
β− = 100, β−n = 11,4 |
|
27F |
4,9 ms |
|
5/2+ |
β− = 100, β−n = 77,21 |
|
28F |
40 ns |
|
|
n ? |
|
29F |
2,6 ms |
|
5/2+ |
β− = 100, β−n = 60,40 |
|
30F |
< 260 ns |
|
|
? |
|
31F |
> 260 ns |
|
|
β−?, β−n = ? |
|
Isotop |
Halbwertszeit |
Zerfallsenergie in MeV |
spin / Parität |
Zerfallsart(en) in % |
Häufigkeit in %
|
16Ne |
3,74 ns |
0,08 |
0+ |
2p = 100 |
|
17Ne |
109,2 ms |
14,53 (K/β+), 13,93 (Kp), 8,71 (Kα) |
1/2− |
K/β+ = 100, Kp = 95,8, Kα = 2,7 |
|
18Ne |
1672 ms |
4,446 |
0+ |
K/β+ = 100 |
|
19Ne |
17,22 s |
3,238 |
1/2+ |
K/β+ = 100 |
|
20Ne |
stabil |
|
0+ |
|
90,48
|
21Ne |
stabil |
|
3/2+ |
|
0,27
|
22Ne |
stabil |
|
0+ |
|
9,25
|
23Ne |
37,24 s |
4,376 |
5/2+ |
β− = 100 |
|
24Ne |
3,38 min |
2,47 |
0+ |
β− = 100 |
|
25Ne |
602 ms |
7,30 |
(1/2,3/2)+ |
β− = 100 |
|
26Ne |
197 ms |
7,33 |
0+ |
β− = 100, β−n = 0,13 |
|
27Ne |
32 ms |
12,67 (β−), 5,92 (β−n) |
3/2+ |
β− = 100, β−n = 2,0 |
|
28Ne |
17 ms |
12,31 (β−), 8,79 (β−n) |
0+ |
β− = 100, β−n = 22 |
|
29Ne |
14,8 ms |
|
3/2+ |
β− = 100, β−n = 28 |
|
30Ne |
7,3 ms |
|
0+ |
β− = 100, β−n = 13, β−2n = 8,9 |
|
31Ne |
3,4 ms |
|
|
β− = 100, β−n > 0 |
|
32Ne |
3,5 ms |
|
0+ |
β− = 100, β−n > 0 |
|
33Ne |
180 ns |
|
|
n = 100 |
|
34Ne |
60 ns |
|
0+ |
β− = 100, β−n > 0 |
|