英和和英

語源 1

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

発音

• (Received Pronunciation) IPA: /ˈaɪ.sə.təʊp/
• (米国発音) enPR: ī'sətōp, IPA: /ˈaɪ.sə.toʊp/

名詞

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.

使用する際の注意点

Technically, isotopes are nuclides having the same atomic number but different mass number. In practice, the term isotope is often used instead of nuclide.

派生語

豆知識

Tin has 10 stable isotopes, the most of any element.

参考

• isobar
• isotone

語源 2

Possible back-formation from isotopy.

発音

• (米国発音) IPA: /ˈaɪ.sə.toʊp/

動詞

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).

関連する語

• homotope

アナグラム

• pooiest, pooties