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单词 heterotope
释义

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ˈheterotope
ˈheterotope n.
Brit. /ˈhɛt(ə)rə(ʊ)təʊp/
,
U.S. /ˈhɛdərəˌtoʊp/
[Greek τόπος place] Physics and Chemistry each of two or more elements the atoms of which have different atomic numbers and so occupy different positions in the periodic table.
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the world > matter > chemistry > elements and compounds > [noun] > elements > heterotope
heterotope1919
the world > matter > physics > atomic nucleus > [noun] > number of chemical element > separate element
heterotope1919
1919 F. Soddy in Jrnl. Chem. Soc. 115 11 Boyle's practical definition of the element..became replaced by a theoretical conception, to which..I propose to apply the term ‘heterotope’, meaning the occupant of a separate place in the periodic table of elements.
1959 L. W. H. Hull Hist. & Philos. Sci. viii. 267 It is now known that there are atoms of different weights having the same chemical properties. These are called isotopes. There are also ‘isobaric heterotopes’, which have the same weight but different chemical properties.
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更新时间:2024/11/10 22:22:35