While the number of protons defines the element (e.g., hydrogen, carbon, etc.) and the sum of the protons and neutrons gives the atomic mass, the number of neutrons defines the isotope of that element ...

The stable isotope concentrations of a molecular compound or material are presented in ratio form as the molar ratio of the heavy-to-light isotopes. Since this ratio is small, we typically present ...

With Russian troops rolling through the Chernobyl exclusion zone in Ukraine, a biologist who studies wildlife in the area describes the risks of disturbing this radioactive landscape. Traces of ...

outer diameter. Detectors of silver, rhodium and bromine, approximately 3 cm. × 3 cm. in size, were exposed at a distance of 1·2 cm. from the paraffin, and the induced activity was measured with ...

TULELA: Just remember to take into account all the relative abundances of each isotope and average them over. SUNAYANA: Here’s another example you can have a go at. Bromine has two stable ...

Welcome to the IAEA Isotope Hydrology Laboratory. The work done here uses water’s natural isotopic “fingerprint” to map and determine the source, age, movement and interactions of water above and ...

The Isotope Hydrology Collaboration Site gives registered users access to interact with the IAEA on a wide variety of water-related resources, including specialized scientific publications, software, ...

Two specialized analytical techniques simultaneously detect fluorine and isotopes of uranium. Credit: Benjamin Manard and Jacquelyn DeMink/ORNL, U.S. Dept. of Energy Simultaneously, helium gas ...

Hoernle, Kaj Schaefer, Bruce Li, Sanzhong Hauff, Folkmar Li, Xiyao Garbe-Schönberg, Dieter Zhang, Ruixin and Liu, Yiming 2020. 2.8–1.7 Ga history of the Jiao-Liao-Ji Belt of the North China Craton ...

The findings leverage isotope hydrology techniques such as measuring stable isotopes in water molecules to elucidate the contributions of various water sources to river flow, offering critical ...