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isotopeA form of a chemical element that has a different-from-normal atomic mass. Isotopes are used in a number of medical tests because they can produce images of tissues that can be used to detect diseases or conditions.
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isotopeA form of a chemical element in which the atoms have the same number of protons (part of the nucleus of an atom) but with a different number of neutrons (part of the nucleus of an atom). For example, [..]
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isotope(eye-so-tope) [Gk. isos, equal + topos, place] One of several atomic forms of an element, each containing a different number of neutrons and thus differing in atomic mass.
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isotopeAtoms or ions of an element with different numbers of neutronsin their atomic nucleus. Isotopes have the same atomic number but different mass number. Isotopes have very similar chemical properties bu [..]
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isotopeAtoms of the same atomic number (i.e. the same chemical element), however with a different nucleon number, e.g. Ne-20 and Ne-22. Both nuclei belong to the same chemical element neon (symbol: Ne) and t [..]
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isotopeAtoms that differ in atomic mass number , but not in atomic number , are called isotopes. For example, oxygen (atomic number 8) may have an atomic mass number of 16, 17, or 18, depending on whether it has 8, 9, or 10 neutrons. It therefore has three isotopes.
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isotopeOne of two or more nuclides that are chemically identical, having the same number of protons, yet differ in mass number, since their nuclei contain different numbers of neutrons; individual isotopes a [..]
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isotope1913, literally "having the same place," from Greek isos "equal" (see iso-) + topos "place" (see topos); so called because, despite having different atomic weights, the v [..]
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isotopeA possible form of an element, distinguishable from other isotopes of the same element by its differing mass, which is caused by a different number of neutrons in the nucleus (the number of protons, w [..]
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isotopeatom with an unbalanced number of neutrons in its nucleus, giving it a different atomic weight than other atoms of the same element.
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isotopeTwo or more forms (or atomic configurations) of a given element that have identical atomic numbers (the same number of protons in their nuclei) and the same or very similar chemical properties but different atomic masses (different numbers of neutrons in their nuclei) and distinct physical properties. Thus, carbon-12, carbon-13, and carbon-14 are i [..]
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isotopean atom having the same atomic number (number of protons in the nucleus) as another atom but differing in atomic weight (due to different numbers of neutrons in the nucleus)
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isotopeAn atom of a given element having a particular number of neutrons in the nucleus. Isotopes of a given element differ in the numbers of neutrons within the nucleus. Adding or subtracting a neutron from [..]
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isotopean element variant in which the number of neutrons does not equal the number of protons. U-235 has the same number of protons, but not neutrons, as U-238, but U-238 will not fission itself into an atomic chain reaction when lumped together.
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isotopeAn atom of a given element having a particular number of neutrons in the nucleus. Isotopes of a given element differ in the numbers of neutrons within the nucleus. Adding or subtracting a neutron from [..]
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isotopesome elements have more than one form. They differ only in nuclear terms rather than chemical ones and have different relative atomic mass as a result. They may behave slightly differently which allow [..]
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isotopeAny two or more forms of an element having identical or very closely related chemical properties and the same atomic number (the same number of protons in their nuclei), but different atomic weights o [..]
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isotopeA chemical element is characterised by the number of protons in its atomic nucleus. Isotopes are atoms of the same element, i.e. with the same number of protons, but with different numbers of neutrons. Isotopes have the same atomic number but differ in their mass number.
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isotopeA variant form of a chemical element that has similar structure but different mass. Some isotopes are radioactive.
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isotopeAn isotope of an element is another form of the same element, that has a different number of neutrons in the nucleus (giving it a different atomic weight).
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isotope An element that has more or less neutrons than normal. Many isotopes are radioactive.
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isotopeAtom that differs in atomic weight (mass number) from other atoms of the same element because of a different number of neutrons in its nucleus. Some are unstable and radioactive, e.g. 14C (as opposed to 12C).
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isotopeAn atomic form of an element having a particular number of neutrons. Different isotopes of an element have the same number of protons but different numbers of neutrons and hence different atomic masse [..]
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isotopeForms of an element that differ in atomic mass.
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isotopeone of two or more atoms having the same atomic number but different mass numbers.
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isotopeAn isotope is a nuclide with the same atomic number but different atomic mass. Unstable radioactive isotopes are used for labeling in radioimmunoassays (RIA) and immunoradiometric assays (IRMA).
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isotopeOne of two or more atoms with the same number of protons, but different numbers of neutrons in their nuclei. Thus, carbon-12, carbon-13, and carbon-14 are isotopes of the element, carbon, the numbers [..]
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isotopeAtoms of an element with identical chemical properties but with different masses; isotopes are atoms of the same element with different numbers of neutrons
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isotopea nuclide of an element having the same number of protons but a different number of neutrons.
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isotopeIsotopes of a chemical element are versions of that particular element in that have the same number of protons and electrons but different numbers of neutrons. All isotopes of a particular element hav [..]
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isotopeIsotopes of a given element have the same atomic number (same number of protons in their nuclei) but different atomic weights (different number of neutrons in their nuclei). Uranium-238 and uranium-23 [..]
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isotopeAn isotope represents Atoms of the same Element that have the same number of Protons but a different number of Neutrons . They therefore have different Atomic Masses but the same chemical properties. [..]
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isotopeOne of two or more atoms with the same number of protons, but different numbers of neutrons in their nuclei. Thus, carbon-12, carbon-13, and carbon-14 are isotopes of the element, carbon, the numbers [..]
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isotope(n) one of two or more atoms with the same atomic number but with different numbers of neutrons
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isotopeAtoms of an element that have the same number of protons but different numbers of neutrons, and therefore a different atomic mass (Lessons 8, 9, 25)
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isotopeAn isotope is the various forms of an element that has the same amount of protons, but varying numbers of neutrons, in the atom’s nucleus. The different neutron amounts do not alter the chemical identity of that element. An example is nitrogen, which naturally occurs as nitrogen-14 (7 neutrons) and nitrogen-15 (8 neutrons). Isotopes can be stable ( [..]
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isotopeDifferent forms of a single element that have the same number of protons but different numbers of neutrons in their nuclei. Some radioactive isotopes
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isotopeAny chemical element is characterized by a nucleus containing a specific number of protons, which allways is identical to the number of electrons in its atomic shell (if the number of protons and electrons is not identical, the particle is not an atom but an electically charged ion.) In addition any nucleus (except hydrogen) contain s neutrons. Nor [..]
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isotopeOne of two or more atoms that have the same atomic number (i.e., the same number of protons in their nuclei) but have different mass numbers. K
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isotopeIsotopes are atoms whose nuclei contain the same number of protons (and are therefore the same element) but a different number of neutrons. Isotopes have very similar chemical properties but different [..]
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isotopeVariants of a chemical element. They have the same number of protons, but a different number of neutrons. isotope values are expressed as ‘delta values’ using the Greek symbol for ‘delta’ meaning ‘change in a value’ (for example: δ18O). As isotopes are measured in extremely small concentrations, we use the term ‘parts per mil’ or parts per thousand [..]
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isotopeAtoms of the same element with the same atomic number ( the same number of protons) but with different numbers of neutrons an hence different weights. See also allotrope.
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isotopeDifferent forms of a single element that have the same number of protons but different numbers of neutrons in their nuclei. Some radioactive isotopes are unstable and shed nuclear particles over time until they become stable. For instance, unstable isotopes of uranium break down to become lead.
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isotopeA variant of a chemical element that has the same number of protons in the nucleus, but different numbers of neutrons. An example is hydrogen (1 neutron and 1 proton), which has two naturally occurrin [..]
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isotopeIllustrated Glossary of Organic Chemistry Isotope: One of a group of atoms that have the same number of protons (i.e., the have the same atomic number and are the same element) but differ in the numbe [..]
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isotopeIsotopes are atoms of the same element that have different atomic masses. The change in mass occurs because the atoms have different numbers of neutrons. Their charges are all the same but their masse [..]
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isotopeA variation of an element that has the same atomic number of protons but a different weight because of the number of neutrons. Various isotopes of the same element may have different radioactive beh [..]
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isotopeA variation of an element that has the same atomic number of protons but a different weight because of the number of neutrons. Various isotopes of the same element may have different radioactive behav [..]
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isotopea different form of the same chemical element. Isotopes have the same number of protons but different numbers of neutrons.
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isotopeChemically identical but anatomically different forms of an element (the number of neutrons are different so the atomic weight differs).
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isotopeA form of a chemical element in which the atoms have the same number of protons (part of the nucleus of an atom) but with a different number of neutrons (part of the nucleus of an atom). For example, carbon 12, carbon 13, and carbon 14 are isotopes of carbon. They all have six protons in the nucleus, but each has different number of neutrons. Isoto [..]
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isotopeOne or more forms of a chemical element that differ in atomic mass.
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isotopeNot all atoms of (say) gold have the same weight. Some gold atoms contain more neutrons than "usual", and some contain less. They're all gold, chemically, because the chemical propertie [..]
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isotopeA form of a chemical element which varies from other forms of this element by the number of neutrons in it's nucleus. An isotope can be stable or radioactive depending upon the composition of its nucleus.
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isotopeA form of an atom that differs from other forms of the atom in atomic weight. Isotopes may be stable (for example, deuterium) or radioactive (for example, tritium). Isotopes are incorporated into tracer molecules used in imaging molecular function in tissues.
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isotopeOne of several forms of an element having the same atomic number but differing atomic masses.
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isotopeForms of an element wherein all atoms have the same number of protons but different numbers of neutrons.
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isotopeAn atom of a given element having a particular number of neutrons in the nucleus. Isotopes of a given element differ in the numbers of neutrons within the nucleus. Adding or subtracting a neutron from the nucleus changes an atoms mass but does not affect its basic chemical properties.
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isotopeany of two or more forms of a chemical element, having the same number of protons in the nucleus and, hence, the same atomic number, but having different numbers of neutrons in the nucleus and, hence, [..]
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isotopeOne of two or more atoms which have the same atomic number, but different mass number.
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