Frederick Soddy
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Frederick Soddy FRS was an English radiochemist who explained, with Ernest Rutherford, that radioactivity is due to the transmutation of elements, now known to involve nuclear reactions. He also prove
Soddy in 1921
Margaret Todd (doctor)
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Margaret Georgina Todd was a Scottish medical doctor and writer. She coined the term isotope in 1913 in a suggestion to chemist Frederick Soddy.
Frederick Soddy
…atomic mass though the chemical properties are identical. He named this concept isotope meaning "same place". The word was initially suggested to him by Margaret Todd. Later, J. J. Thomson showed that non-radioactive elements can also have multiple isotopes. The work that Soddy and his research assistant Ada Hitchins…
Dr Margaret Todd