All Isotopes articles – Page 2
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ResourceOn This Day - Apr 29 : Harold Urey was born
Urey co-discovered deuterium (²H) with Ferdinand Brickwedde and George Murphy. They produced the first measurable samples of the isotope from liquefied hydrogen.
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ResourceOn This Day - Jan 05 : Harold Clayton Urey died
He was awarded the 1934 Nobel Prize in Chemistry for the discovery of deuterium in heavy water. Deuterium (2H) is an isotope of hydrogen that contains an extra neutron.
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AnecdoteOn This Day - Feb 18 : Introduction of isotope
British chemist Frederick Soddy coined the term isotope (from the Greek, meaning ‘in the same place’) to describe different elements that can be chemically indistinguishable but have different atomic weights and characteristics.
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NewsPeriodic table of the isotopes launched by IUPAC
IUPAC has launched a new periodic table which emphasises isotopic composition
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FeatureIda Noddack and the missing elements
Distinguished women chemists were rare in the early 20th century, but their contributions to chemistry are of great significance. Ida Noddack's scientific career centred around her intensive study of the Periodic Table, and resulted in her discovery, with husband Walter Noddack and physicist Otto Berg, of the metal rhenium, and of nuclear fission in the search for element 93.
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