isotope
pronunciation
How to pronounce isotope in British English:
UK [ˈaɪsətəʊp]
How to pronounce isotope in American English:
US [ˈaɪsətoʊp]
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- Noun:
- one of two or more atoms with the same atomic number but with different numbers of neutrons
Word Origin
- isotope
- isotope: [20] The term isotope for a version of an element with a particular atomic weight was coined in 1913 by the British chemist Frederick Soddy. It means literally ‘equal place’ and was formed from two Greek components, the prefix iso- ‘equal’ and the noun tópos ‘place’ (source of English topic). The reason for the coinage was that although isotopes of the same element have different atomic weights, they occupy the ‘same place’ in the periodic table of elements.=> topic
- 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.
Example
- 1. Routine isotope production is due to start in 2015 .
- 2. This creates regions with geographically similar isotope values .
- 3. The isotope does occur in nature but only extremely rarely .
- 4. The ariel project forms part of the canadian government 's plans to modernize isotope production .
- 5. The isotope can then be detected in the patient 's exhaled breath .