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

In a recent paper published in National Science Review, a jointed team of scholars from China and UK has made significant ...

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 ...

None of the current nuclear mass models can explain it. There are some hints it could be caused by a sudden change in the nuclear structure of these isotopes, but it will require further ...

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

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 ...

All three isotopes of hydrogen have identical chemical properties. This is because the number of electrons determines chemical properties, and all three isotopes have one electron in their atoms.