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Moseley - His contribution To Physics and Chemistry

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Henry Moseley established the Periodic Table of Elements through his research with x-ray crystallography and this presentation explains in simple form exactly what he did.

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Moseley - His contribution To Physics and Chemistry

  1. 1. Henry Moseley Seaman’s Barmy Army
  2. 2. What was his contribution to Science?  British Physicist, Henry Moseley is known most famously for his establishment of the Periodic Table of Elements.  In a short career much of the research he did contributed to the science of physics.  Many scientists believe if Moseley had lived longer he would have contributed a great deal more to atomic structure and that he would have also earned the Nobel Prize in Physics.
  3. 3. Background  Born in Weymouth, Dorset – 23rd November 1887  His family were rich, aristocratic and scientifically accomplished.  Henry Nottidge Moseley, his father, was a biologist and also a professor of anatomy and physiology at the University of Oxford.  John Gwyn Jeffreys, his grandfather, was a biologist and conchologist  It was not surprising that Moseley showed a great interest in the sciences
  4. 4. Education  As a child he attended Eton College  He graduated from Trinity College – University of Oxford.
  5. 5. Work and Research  At the University of Manchester, Moseley carefully observed and measured the X-ray spectra of various chemical elements obtained by diffraction in crystals.  Through his studies he discovered a pattern – a systematic relation between wavelength and atomic number. A discovery known as rather brilliantly – Moseley’s Law.
  6. 6. Contribution to Chemistry and the Atom  Moseley’s work in early X-ray crystallography was able to complete many chemical problems, some of which had baffled chemists for many years.  Problems such as the irregularities in the location of elements such as Argon and Potassium; the positioning of the inner transition elements in the Periodic Table – all could now be clarified on the basis of the atomic number.
  7. 7. End of his Era  In 1914, Moseley planned to continue his studies in atomic structure at the University of Oxford – resulting in his resignation from the university of Manchester.  His plans were cut short, on August 10th 1915 he was shot dead during the Battle of Gallipoli in Turkey.
  8. 8. Modern Shaping  Many Physicists believe he would have gone on to win the Nobel Prize in Physics.  Prediction of gaps in the periodic table and the discovery of synthetic elements to fill these gaps.  Predictions of the lanthanide elements.
  9. 9. THE END

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