Isotopes

Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number. All isotopes of a given element have the same number of protons but different numbers of neutrons in each atom.The term isotope is formed from the Greek roots isos (ἴσος "equal") and topos (τόπος "place"), meaning "the same place"; thus, the meaning behind the name is that different isotopes of a single element occupy the same position on the periodic table. It was coined by Scottish doctor and writer Margaret Todd in 1913 in a suggestion to chemist Frederick Soddy. The number …

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Publications

World Bank Group · 24 April 2024 English

This report presents our assessment of the relative importance of theseveral pollution problems and other man-induced chemical changes in theMediterranean Sea. It also presents an assessment of the relative importanceof …

of contaminants such as the PCBs and plutonium isotopes in association with particles, - 29 - particularly early 1960s. The ratio of this isotope to other isotopes of carbon is perturbed in surface waters and


IPAR: Agricultural and Rural Foresight Initiative Senegal · 17 April 2024 French

L’objectif global de cette étude est de contribuer à l’amélioration de la productivité agricole des terres salées par la promotion de pratiques agro- écologiques et de systèmes de cultures adaptées …

Agricoles 14: FAO, Sénégal 15: Laboratoire des Radio Isotopes (LRI), Université d’Antananarivo, Madagascar Une


CAPS: Centre for Air Power Studies · 15 April 2024 English

One of ensure rapid induction ofIndia’s nuclear power programme up the future issues reactors to undercut thethe ladder: firstly, the government of NuClealry Put will cynicism that is often explore …

design allows them to be placed in new radioactive isotopes it handles. Change is settings – next to industrial


PIK: Potsdam-Institut fur Klimafolgenforschung · 11 April 2024 English

Eastern Africa and Arabia were major hominin hotspots and critical crossroads for migrating towards Asia during the late Pleistocene. To decipher the role of spatiotemporal environmental change on human occupation …

for the upper 3 m of the core and stable oxygen isotopes for the lower 19 m of the core. 21 AMS 14C analyses


SGR: Scientists for Global Responsibility · 11 April 2024 English

The enormous explosion arises as a small amount of matter is converted into energy as defined by the famous equation e = m x c2 where e is the energy …

nuclei. This creates radioactive versions – called isotopes – of many elements important in the human body


EU: European Union · 27 March 2024 English

In November 2022, the EU Scientific Seminar covered the issue Radiological protection considerations for fusion reactors. Internationally renowned scientists presented the following topics: An introduction to basics of fusion technologies; …

tokamak building rooms, is activated. The main isotopes entailing irradiation risks are 14C and 41Ar liquid produces 203Hg and 210Po, radioactive isotopes of mercury and polonium whose doses factors per sieve for separating low-concentration hydrogen isotopes from helium. Fusion Engineering and Design. 1995;


EU: European Union · 22 March 2024 English

The roadmap for ‘Medical Applications of Ionising Radiation for Better Patients’ Lives’ has been established within the Euratom Horizon 2020 EURAMED rocc-n-roll project. It takes into account the EURAMED rocc-n-roll …

Radiation Exposure (MEDIRAD) project, Medical Isotopes Collected from ISOLDE (MEDICIS), SAMIRA study


CCAC: Climate and Clean Air Coalition to Reduce Short-Lived Climate Pollutants · 20 March 2024 English

The IGSD Primer on Cutting Methane provides the scientific and policy rationale for decision- makers to achieve the “strong, rapid, and sustained” cuts to methane emissions needed to slow global …

consideration, during the peak in anomalously low carbon isotopes, the atmospheric CO2 and CH4 concentrations rose consideration, during the peak in anomalously low carbon isotopes, the atmospheric CO2 and CH4 concentrations rose


ISC: International Science Council · 18 March 2024 English

Importantly, the ISC sought to involve its Members in this journey, understanding that the strength of the ISC is intrinsically linked to the robustness of its membership. [...] The ISC …

Project, which collects data on trace elements and isotopes in the ocean, addresses the need to consolidate


EU: European Union · 14 March 2024 English

As a result of global warming, the marine ecosystem around the North Pole, the Central Arctic Ocean (CAO), is in fast transition from a permanently to a seasonally ice-covered ocean. …

SD Standard deviation SI Stable isotopes SIA Stable isotopes analysis SLU Swedish Agricultural


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