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what was Henry Moseley's contribution to the periodic table?
Weegy: Henry Gwyn Jeffreys Moseley (23 November 1887 – 10 August 1915) was an English physicist. [ Moseley's outstanding 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 justified many concepts in chemistry by sorting the chemical elements of the periodic table of ... (More)
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Asked 11/3/2011 9:33:07 PM
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what was Henry Moseley's contribution to the periodic table?
Weegy: The Researching around I would say discovery of the "atomic number" used for ordering the elements in the periodic table would probably be the answer. This is recorded as being in 1913. (More)
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Asked 11/3/2011 9:40:39 PM
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The _____________ have a single electron in the highest occupied energy level.
Weegy: valence field User: The _____________ have a single electron in the highest occupied energy level. Weegy: semiconductor like silicon and germanium (More)
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Asked 11/4/2011 6:41:57 AM
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what was Henry Moseley's contribution to the periodic table?
Weegy: In 1914 Henry Moseley found a relationship between an element's X-ray wavelength and its atomic number (Z), and therefore resequenced the table by nuclear charge rather than atomic weight. [ Before this discovery, atomic numbers were just sequential numbers based on an element's atomic weight. Moseley's discovery showed that atomic numbers had an experimentally measurable basis. Thus Moseley placed argon (Z=18) before potassium (Z=19) ... (More)
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Asked 11/4/2011 8:21:26 AM
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In the transition elements, electrons are usually added to the _______ orbital, which is why these elements are also knows as the _________.
Weegy: In the transition elements, electrons are usually added to the outer orbital, which is why these elements are also knows as the transition metals (More)
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Asked 11/4/2011 8:27:18 AM
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