Beryllium Isotopic Data
Isotope |
Isotopic Mass amu |
% Abundance |
T1/2 |
T1/2 Units |
Mass Excess KeV |
Binding Energy Per Nucleon KeV |
Decay Mode |
Branching Ratio |
5Be |
5.0408 (43) |
|
|
|
38,000 (4000) |
-200 (800) |
p ? |
|
6Be |
6.0197263 (58) |
|
5 |
zs |
18,374.9 (5.4) |
4,487.3 (9.1) |
2p |
100 |
7Be |
7.01692983 (11) |
|
53.22 |
d |
15,770.03 (11) |
5,371.40 (1.5) |
EC |
100 |
8Be |
8.005305103 (37) |
|
67 |
as |
4,941.672 (35) |
7,062.435 (4) |
A |
100 |
9Be |
9.01218220 (43) |
100 |
stable |
|
11,347.65 (40) |
6,462.76 (4.4) |
|
|
10Be |
10.01353382 (43) |
|
1.51 |
My |
12,606.67 (40) |
6,497.71 (4) |
B- |
100 |
11Be |
11.0216577 (68) |
|
13.81 |
s |
20,174.1 (6.4) |
5,952.8 (5.8) |
B- |
100 |
12Be |
12.026921 (16) |
|
21.5 |
ms |
25,077 (15) |
5,721 (1.2) |
B- |
100 |
13Be |
13.035693 (77) |
|
0.5 |
ns |
33,248 (72) |
5,273 (5.5) |
n ? |
|
14Be |
14.04289 (14) |
|
4.35 |
ms |
39,950 (130) |
4,994 (9.4) |
B- |
100 |
15Be |
15.05346 (54) |
|
<200 |
ns |
49,800 (500) |
4,540 (34) |
n ? |
|
16Be |
16.06192 (54) |
|
<200 |
ns |
57,680 (500) |
4,270 (31) |
2n ? |
|
13mBe |
13.035693 (77) |
|
2.7 |
zs |
33,248 (72) |
5,273 (5.5) |
0 |
|
13m1Be |
13.035693 (77) |
|
|
|
33,248 (72) |
5,273 (5.5) |
0 |
|
14mBe |
14.04289 (14) |
|
|
|
39,950 (130) |
4,994 (9.4) |
0 |
|
Data Source: ENSDF March 2005
©Radiochemistry Society 2005