isotope

English

Wikipedia

Etymology 1

Coined in 1914 by British chemist Frederick Soddy from Ancient Greek ἴσος (ísos, “equal; same”) and τόπος (tópos, “place”), because the different isotopes of a chemical element always occupy the same position in the periodic table of elements. Compare the synonymous Icelandic word samsæta.

Pronunciation

• (RP) IPA: /ˈaɪ.sə.təʊp/
• (US) IPA: /ˈaɪ.sə.toʊp/

• Audio (US)

  (file)

Noun

isotope (plural isotopes)

1. (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. As a consequence, atoms for the same isotope will have the same atomic number but a different mass number (atomic weight).

Derived terms

isotope analysis isotope dilution isotope geochemistry isotope hydrology

isotope map isotope separation isotope shift isotope table

Translations

atoms of the same element having a different number of neutrons

• Arabic: نظير (ar) (naZiir) m
• Armenian: իզոտոպ (hy) (izotop)
• Asturian: isótopu (ast) m
• Belarusian: ізатоп (be) (izatóp) m
• Bulgarian: изотоп (bg) (izotóp) m
• Catalan: isòtop m
• Chinese:

  Mandarin: 同位素 (cmn) (tóngwèisù)

• Czech: izotop (cs) m
• Dutch: isotoop (nl) m
• Esperanto: izotopo (eo)
• Finnish: isotooppi (fi)
• French: isotope (fr) m
• Galician: isótopo (gl) m
• German: Isotop (de) n

• Greek: ισότοπο (el) (isótopo) n
• Hungarian: izotóp (hu)
• Icelandic: samsæta (is) f, ísótópur (is) m
• Ido: izotopo (io)
• Irish: iseatóp (ga) m
• Italian: isotopo (it) m
• Japanese: 同位体 (ja) (どういたい, dōitai)
• Lithuanian: izotopas (lt) m
• Portuguese: isótopo (pt) m
• Romanian: izotop (ro) m
• Russian: изотоп (ru) (izotóp) m
• Spanish: isótopo (es) m
• Swedish: isotop (sv) c
• Ukrainian: ізотоп (uk) (izotóp) m

See also

• isobar
• isotone

Etymology 2

Pronunciation

• (US) IPA: /ˈajsətowp/

Verb

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).

Related terms

• homotope

Anagrams

• pooiest
• pooties

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French

Pronunciation

• IPA: /i.zo.tɔp/

• Audio (Paris)

  (file)

Adjective

isotope (masculine and feminine, plural isotopes)

1. isotopic (relating to isotopes)

Noun

isotope m (plural isotopes)

1. isotope

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Latin

Noun

isotope

1. vocative singular of isotopus