isotopic number

the number of neutrons minus the number of protons in an atomic nucleus.

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Universalium. 2010.

Look at other dictionaries:

  • isotopic number — noun : the number of neutrons minus the number of protons in an atomic nucleus * * * Physics. the number of neutrons minus the number of protons in an atomic nucleus. * * * isotopic number noun The excess number of neutrons over protons in a… …   Useful english dictionary

  • isotopic number — izotopinis skaičius statusas T sritis fizika atitikmenys: angl. difference number; isobaric number; isotopic number vok. Isotopiezahl, f; isotopische Zahl, f rus. изотопическое число, n pranc. nombre isotopique, m …   Fizikos terminų žodynas

  • isotopic number — the number which when added to twice the atomic number gives the atomic weight …   Medical dictionary

  • isotopic number — /ˌaɪsətɒpɪk ˈnʌmbə/ (say .uysuhtopik numbuh) noun the difference between the number of neutrons and the number of protons in an isotope; neutron excess …   Australian English dictionary

  • Isotopic labeling — (or isotopic labelling) is a technique for tracking the passage of a sample of substance through a system. The substance is labeled by including unusual isotopes in its chemical composition. If these unusual isotopes are later detected in a… …   Wikipedia

  • isotopic spin — noun : isospin herein * * * Physics. a quantum number that is related to the number of different values of electric charge that a given kind of baryon or meson may have. Symbol: I Also called isospin, i spin. [1935 40] * * * isotopic spin same as …   Useful english dictionary

  • isotopic spin quantum number — izotopinio sukinio kvantinis skaičius statusas T sritis fizika atitikmenys: angl. isobaric spin quantum number; isospin quantum number; isotopic spin quantum number vok. Isospinquantenzahl, f; Isotopenspinquantenzahl, f rus. квантовое число… …   Fizikos terminų žodynas

  • Isotopic — The word isotopic has a number of different meanings, including:* In the physical sciences, to do with chemical isotopes; * In mathematics, to do with a relation called isotopy. * In geometry, isotopic refers to facet transitivity …   Wikipedia

  • isotopic fractionation — ▪ chemistry       enrichment of one isotope relative to another in a chemical or physical process. Two isotopes of an element are different in weight but not in gross chemical properties, which are determined by the number of electrons. However,… …   Universalium

  • isotopic spin — Physics. a quantum number that is related to the number of different values of electric charge that a given kind of baryon or meson may have. Symbol: I Also called isospin, i spin. [1935 40] * * * …   Universalium

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