Thursday, 22 March 2012

Moseley predicts atomic number 72

This - Moseley predicts atomic number 72 - might be more interestesting if it were about James Moseley, the son of US Army Major General George van Horne Moseley, who was a ufologist and co-founder of Saucer News. However it isn't about that Moseley.

Henry Moseley predicts atonic number 72
Moseley Predicts Atomic Number 72 is about the physicist Henry Moseley who lived but 27 years between 1887 and 1915. Henry Gwyn Jeffrys Moseley was born in the United Kingdom. Henry Moseley gets his education through the Oxford system and graduates in 1910. From Oxford he goes to University of Manchester where he does graduate research under the wings of Sir Ernest Rutherford who is today recognized as the father of nuclear physics.

Henry Moseley measured chemical elements through X-Ray spectroscopy. Through his understanding of Bragg's difraction law and the pioneering technology of x-ray spectroscopy he discovers a pattern between wavelengths of X-rays and the atomic number of metals Moseley's law is the result of this discovery.

Back in the 1800's the Russian Mendeleev had invented the periodic table of elements and had predicted that certain elements would eventually be found and added to his chart. Moseley reworked the placement of a few existing elements on the Mendeleev chart. He also suggested that there were gaps or spaces in the periodic table that should identify yet unknown elements at 43, 61, 72 and 75. All of these spaces are now filled with  the discoveries of technetium, promethium, hafnium, and rhenium.

Hafnium was periodic table element 72 or 72HF and discovered in 1923.

While Mendeleev had lived to an average age of 72 years, Moseley unfortunately found his death while engaged in a war conflict in Turkey. He had discontinued his physics research and joined up with the Royal Engineers of the British Army. World War I had begun and he was an acting technical officer in communications. During the Battle of Galipoli, Henry Moseley was sending out a military order over the telephone when a sniper bullet planted itself in his head and wounded him fatally.

Moseley predicted atomic number 72 and most people agree that had he lived a longer life he would have won the Nobel Prize and many other awards. In his legacy the British Government enacted a policy of  never recruiting into action their prodigy subjects.

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Thanks for sharing