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无 Isotope Aisəutəup N.同位素 N Literally Place Introduced

单词 isotope
音标 ['aisəutəup]
解释 n.同位素
红宝书
字源 isotope (n.)
1913, literally "having the same place," introduced by British chemist Frederick Soddy (1877-1956) on suggestion of Margaret Todd, from Greek isos "equal" (see iso-) + topos "place" (see topos); so called because despite the different atomic weights, the various forms of an element occupy the same place on the periodic table.
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