Scientists found an unexpected nuclear energy shift in radioactive lanthanum isotopes, challenging existing models and ...

Researchers at the Accelerator Laboratory of the University of Jyväskylä, Finland, precisely measured atomic masses of radioactive lanthanum isotopes and found an interesting feature in their nuclear ...

and the sum of the protons and neutrons gives the atomic mass, the number of neutrons defines the isotope of that element. For example, most carbon (≈ 99 %) has 6 protons and 6 neutrons and is written ...

Radioactive spike found in Pacific seabed samples. It could be from space radiation or changes in ocean currents 10 million ...

Share with students the following steps for simulating decay of their isotope. (You may want to model the procedure once.) Have students create a chart similar to the one below. Cover box and turn ...

This measurement provides carbon, oxygen and “clumped” isotope ratios for carbonate minerals ... with modifications from previous models that allow us to measure smaller samples than previously ...

Radiological sources are vital to many applications, and typically contain byproducts from waste streams which decay over time to form complex mixtures of elements. Daughter products resulting from ...

The IAEA offers a variety of training courses in the fundamentals of isotope hydrology and isotopic analyses of stable isotopes, tritium, and noble gases. This course provides an overview of advances ...

The international team also used the data to get direct information about the deformation of the atomic nucleus in ytterbium ...

Collagen was extracted and analyzed for bulk stable isotopes of carbon-13 (δ 13 C) and nitrogen-15 (δ 15 N) and compound-specific isotopes of individual amino acids. Radiocarbon dating provided ...

Stable isotopes are non-radioactive forms of atoms. Although they do not emit radiation, their unique properties enable them to be used in a broad variety of applications, including water and soil ...