isotope

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See also: Isotope

English

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English Wikipedia has an article on:
Wikipedia
A diagram of the three main isotopes of hydrogen.

Etymology 1

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From iso- (equal) +‎ -tope (place), because the different isotopes of a chemical element always occupy the same position in the periodic table of elements. The term was coined by Scottish doctor Margaret Todd in 1909 and first used publicly on February 27, 1913 by English chemist Frederick Soddy.

Pronunciation

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Noun

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isotope (plural isotopes)

  1. (nuclear physics) Any of two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei. Thus, isotopes have the same atomic number but a different mass number.
Usage notes
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Technically, isotopes are nuclides having the same atomic number but different mass number. In practice, the term isotope is often used instead of nuclide.

Derived terms
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Translations
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See also

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Etymology 2

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Possible back-formation from isotopy.

Pronunciation

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Verb

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isotope (third-person singular simple present isotopes, present participle isotoping, simple past and past participle isotoped)

  1. (topology, transitive) To define or demonstrate an isotopy of (one map with another).
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Anagrams

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French

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Pronunciation

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Adjective

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isotope (plural isotopes)

  1. (relational) isotope; isotopic

Noun

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isotope m (plural isotopes)

  1. isotope

Descendants

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  • Romanian: izotop
  • Turkish: izotop

Further reading

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German

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Adjective

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isotope

  1. inflection of isotop:
    1. strong/mixed nominative/accusative feminine singular
    2. strong nominative/accusative plural
    3. weak nominative all-gender singular
    4. weak accusative feminine/neuter singular

Latin

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Noun

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isotope

  1. vocative singular of isotopus