Henry moseley model
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Henry Moseley
English physicist (1887–1915)
For other people named Henry Moseley, see Henry Moseley (disambiguation).
Henry Gwyn Jeffreys Moseley (; 23 November 1887 – 10 August 1915) was an English physicist, whose contribution to the science of physics was the justification from physical laws of the previous empirical and chemical concept of the atomic number. This stemmed from his development of Moseley's law in X-ray spectra.
Moseley's law advanced atomic physics, nuclear physics and quantum physics by providing the first experimental evidence in favour of Niels Bohr's theory, aside from the hydrogen atom spectrum which the Bohr theory was designed to reproduce. That theory refined Ernest Rutherford's and Antonius van den Broek's model, which proposed that the atom contains in its nucleus a number of positive nuclear charges that is equal to its (atomic) number in the periodic table.[1][2]
When World War I broke out in Western Europe, Moseley left his research work at the University of Oxford behind to volunteer for the Royal Engineers of the Brit
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Henry Moseley and the Periodic Table of the Elements
World War I, Gallipoli front, the allied forces consisting of the soldiers from Britain, France, Australia, and New Zealand attacked and partly occupied the Gallipoli Peninsula of the Ottoman Empire (present Turkey) starting April 25, 1915. The goal was to control the Straits of the Dardanelles, separating the European part of the Ottoman Empire from its Asian part Anatolia so that the allied battleships can reach Constantinople (Istanbul) and knock out the Ottoman Empire from the war. The other goal was to open a supply line to the Russian Empire that was struggling in battles against Germany on its Western front. Earlier on March 18, 1915, sixteen of the British and French battleships with two ships in reserve had failed to pass through the Dardanelles and retreated with heavy losses. The battles on the Gallipoli front were very bloody and caused heavy casualties totaling to about 250,000 dead or wounded soldiers on each side. One of the bloody battles took place at a hill called Chunuk Bair (Conkbayırı) (280 m high) on A
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Henry Moseley: A Patriotic Scientist Who Changed the Periodic Table — and Then Went Off to War
Physicist Henry Moseley did not have to fight for his country in World War I.
Because he was an aristocrat and an accomplished scientist, the young Moseley’s mother told him he could serve his country using his scientific expertise from behind the battle lines.
Undaunted, Moseley tried to join the British military’s Royal Engineers but was initially rejected. They told Moseley, “We need engineers, not physicists.”
Nevertheless, he eventually joined them as the second lieutenant, leading a command of 26 soldiers.
A few months later, during the early morning of Aug. 10, 1915, about 1,000 British soldiers were killed in a bloody battle at the Gallipoli peninsula in the Ottoman Empire (present-day Turkey). The invasion of Gallipoli was a disaster for Britain and its allies.
Among those killed was Moseley, who was shot in the head and died instantly. He was 27, about three months short of his 28th birthday.
But even at a young age, Moseley had already