That’s because beryllium-9 is stable, while beryllium-10 has a half-life of 1.4 million years. The older a sedimentary sample is, therefore, the lower the ratio of Be:Be, or at least that would ...

Tests found increased levels of dioxane and other chemicals of concern in groundwater, after a former beryllium plant ...

An international team of scientists has found unexpectedly high levels of the rare radioactive isotope beryllium-10 in samples from the Pacific seabed. And they believe it could have been caused ...