Notable Isotopes 
7Be [3 neutrons]
Abundance: synthetic
Half life: 53.12 days [ Electron Capture ]
Decay Energy: ? MeVDecays to 7Li.
Half life: 53.12 days [ Gamma Radiation ]
Decay Energy: 0.477 MeVDecays to ?.
9Be [5 neutrons]Abundance: 100%
Stable with 5 neutron
10Be [6 neutrons]Abundance: trace
Half life: 1.51 x 106 years [ beta- ]
Decay Energy: 0.556 MeVDecays to 10B.
| Cosmogenic 10Be is produced in the atmosphere by cosmic ray spallation of oxygen and nitrogen. |
| 10Be and its daughter products have been used to examine soil erosion, soil formation from regolith, the development of lateritic soils, as well as variations in solar activity and the age of ice cores. It is also formed in nuclear explosions by a reaction of fast neutrons with 13C in the carbon dioxide (CO2) in air, and is one of the historical indicators of past activity at nuclear test sites. |