Helium Isotopic Data
|
Isotope |
Isotopic Mass amu |
% Abundance |
T1/2 |
T1/2 Units |
Mass Excess KeV |
Binding Energy Per Nucleon KeV |
Decay Mode |
Branching Ratio |
|
3He |
3.0160293191 (26) |
0.000137 (3) |
stable |
|
14,931.2148 (24) |
2,572.681 (1) |
|
|
|
4He |
4.002603254150 (60) |
99.999863 (3) |
stable |
|
2,424.915650 (60) |
7,074 (0) |
|
|
|
5He |
5.012224 (54) |
|
700 |
ys |
11,386 (50) |
5,480 (10) |
n |
100 |
|
6He |
6.01888912 (81) |
|
806.7 |
ms |
17,595.11 (76) |
4,878.0 (1.3) |
B- |
100 |
|
7He |
7.028021 (18) |
|
2.9 |
zs |
26,101 (17) |
4,119 (2.4) |
n |
100 |
|
8He |
8.0339219 (74) |
|
119 |
ms |
31,598.0 (6.9) |
3,926.0 (8.6) |
B- |
100 |
|
9He |
9.043950 (32) |
|
7 |
zs |
40,939 (29) |
3,349 (3.3) |
n |
100 |
|
10He |
10.052399 (75) |
|
2.7 |
zs |
48,809 (70) |
3,034 (7) |
2n |
100 |
Data Source:
ENSDF March 2005
©Radiochemistry
Society 2005