isotope

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Related to stable isotope: Unstable isotope, Isotope fractionation, Radiogenic isotope

i·so·tope

 (ī′sə-tōp′)
n.
One of two or more atoms having the same atomic number but different mass numbers.

[iso- + Greek topos, place (so called because the isotopes of a chemical element occupy the same position in the periodic table of elements).]

i′so·top′ic (-tŏp′ĭk) adj.
i′so·top′i·cal·ly adv.

isotope

(ˈaɪsəˌtəʊp)
n
(Chemistry) one of two or more atoms with the same atomic number that contain different numbers of neutrons
[C20: from iso- + Greek topos place]
isotopic adj
ˌisoˈtopically adv
isotopy n

i•so•tope

(ˈaɪ səˌtoʊp)

n.
one of two or more forms of a chemical element having the same number of protons, or the same atomic number, but having different numbers of neutrons, or different atomic weights.
[1913; iso- + Greek tópos place]
i′so•top′ic (-ˈtɒp ɪk) adj.
i`so•top′i•cal•ly, adv.
i•sot•o•py (aɪˈsɒt ə pi, ˈaɪ səˌtoʊ pi) n.

i·so·tope

(ī′sə-tōp′)
One of two or more atoms that have the same number of protons but a different number of neutrons. Carbon 12, the most common form of carbon, has six protons and six neutrons, whereas carbon 13 has six protons and seven neutrons.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.isotope - one of two or more atoms with the same atomic number but with different numbers of neutrons
atom - (physics and chemistry) the smallest component of an element having the chemical properties of the element
radioisotope - a radioactive isotope of an element; produced either naturally or artificially
deuterium, heavy hydrogen - an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen)
Translations
izotóp
samsæta
izotopas
isotop

isotope

[ˈaɪsəʊtəʊp] Nisótopo m

isotope

[ˈaɪsətəʊp] nisotope m

isotope

nIsotop nt

isotope

[ˈaɪsəˌtəup] nisotopo

i·so·tope

n. isótopo, elemento químico parte de un grupo de elementos que presentan propiedades casi idénticas, pero difiere de éstos en el peso atómico.

isotope

n isótopo
References in periodicals archive ?
Heavy stable isotope analysis of mid-late Holocene Neolithic burials from Sarawak (Malaysia) identifies groups not apparent in mortuary treatment or inferred subsistence.
Of course we accept that there are inherent biases in the study of this faunal data, but this vast quantity of archaeological evidence cannot be dismissed simply because it cannot be reconciled with the small number of stable isotope results for this period.
Stable isotope analysis, using a gas chromatograph isotope ratio spectrometer (GC-IRMS), is a technique sensitive enough to measure the slight variations in the abundances of these two isotopes for a specific groundwater contaminant, providing the ability to investigate different sources and to determine the fate of groundwater contamination.
Cassini's ion-and-neutral-mass spectrometer found that nitrogen's heavier stable isotope is considerably more abundant than the element's lighter one.
Stable isotope imaging of a dynamic groundwater system in the southwestern Sacramento Valley, California (USA).
The results, originally presented in December 1995 to the IAEA Consultants' Meeting for Light Stable Isotope Reference Materials in Vienna, Austria, initiated research and development activities to address these effects at several other organizations in collaboration with NIST.
ABSTRACT: Recently, researchers emphasized that patterns of stable isotope ratios observed at the individual level are a result of an interaction between ecological, physiological, and biochemical processes.
I propose to use the stable isotope systematics of W, Mo and Cr to assess as to whether core formation temperatures for the Earth, Moon, Mars and asteroids are different, as would be expected if metal segregation in the Earth involved metal-silicate equilibration in a deep magma ocean.
They cover stable isotope chemistry and measurement, sources of variation in the stable isotope composition of plants, natural abundance isotopes as indicators of forest nitrogen status and soil carbon dynamics, soil nutrition isotope composition, isotopic studies of the biology of modern ad fossil vertebrates, isotopic tracing of migrant wildlife, the natural abundance of a nitrogen isotope in marine plankton ecosystems, marine chemoautotrophically based ecosystems, tracers in marine food webs, temporal and spatial variability in organic matter sources to freshwater ecosystems, watershed hydrology, anthropogenic inputs of nitrogen, models of ecosystem biochemistry, and isotope analysis in ecology and paleoecology.