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1914
Using x-ray tubes, determined the charges on the nuclei of most atoms. He wrote"The atomic number of an element is equal to the number of protons in the nucleus". This work was used to reorganize the Periodic Table based upon atomic number instead of atomic mass.
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∙ 13y ago
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∙ 11y agoNo, every element exists in more than one form, called isotopes, which have the same number of protons and electrons, but different numbers of neutrons. Hydrogen, for example, usually has no neutrons, but there do exist two other hydrogen isotopes, deuterium having one neutron and tritium having two neutrons (most isotopes don't have their own names, hydrogen is unusual in that respect).
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∙ 6y agoThat is not true. They will have the same number of protons, but different isotopes of the same element will have a different number of neutrons. Carbon 12, 13 and 14 all have a different number of neutrons.
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∙ 7y agoNo, they must have the same number of protons, but the neutrons can differ. If there are different numbers of neutrons, we call the atoms isotopes of that element. Most element samples contain more than one isotope, in various proportions.
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∙ 12y agoyes
Moseley was the first to clear and scientifically justify in 1913 the atomic number studying X-ray spectra of chemical elements.
But Moseley hadn't a personal atomic theory.
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∙ 7y agoEach isotope has a specific number of neutrons.
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∙ 12y agoFalse - Its not neutrons it is protons
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∙ 10y agoYes, it is true.
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∙ 14y agoRutherford
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What did Moseley use to reorder the elements of Mendeleev periodic table?
Henry Moseley discovered a relation between X-ray spectra and the atomic number of chemical elements.
Which scientist discovered that the atomic number rather than the atomic weight is more responsible for the properties of an element?
Henry Moseley is the scientist who discovered that the atomic number rather than the atomic weight is more responsible for the properties of an element.
What contribution did Moseley make to the development of the mondern periodic table?
Mosley arranged elements in order of increasing atomic number
Who showed that periodicity depended upon atomic number?
Henry Moseley.
What did Henry Moseley determine that contributed to the understanding of an atom?
Henry Moseley is a Physicist. He used x-rays and discovered the atomic number of each element, that led to more accurate organization of the periodic table. He arranged the elements in the periodic table by the number of protons of the elements not on the basis of atomic weights of the elements.
Who discovered atomic number?
M.G mosly is the person. He discovered the atomic number.
Who discovered the concept of the atomic number?
Henry Gwyn-Jeffreys Moseley in the 1910s.
What did Henry Moseley discover in science?
he knew that it had protons and neutrons and electrons but he thaught the charges where the wrong way round
What did Moseley use to reorder the elements of Mendeleev periodic table?
Henry Moseley discovered a relation between X-ray spectra and the atomic number of chemical elements.
How did Moseley establish a more accurate periodic table?
Moseley discovered a relation berween the atomic number and the wavelength of X-rays emitted by an element.
Which scientist discovered that the atomic number rather than the atomic weight is more responsible for the properties of an element?
Henry Moseley is the scientist who discovered that the atomic number rather than the atomic weight is more responsible for the properties of an element.
British scientist who discovered the atomic numbers of elements is?
Henry Moseley
What did Henry Moseley change about the periodic table?
Henry Moseley discovered a relation between the atomic number and the X-ray wavelength of a given chemical element; this was a physical confirmation of the periodic table and the order of elements in the table.
How did Moseley discover the atomic theory?
Moseley was the first to clear and scientifically justify in 1913 the atomic number studying X-ray spectra of chemical elements. But Moseley hadn't a personal atomic theory, he was not the discoverer of the atomic theory.
What was Moseley's atomic theory?
Moseley was the first to clear and scientifically justify in 1913 the atomic number studying X-ray spectra of chemical elements. But Moseley hadn't a personal atomic theory, he was not the discoverer of the atomic theory.
What was hery Moseley's atomic theory?
Moseley was the first to clear and scientifically justify in 1913 the atomic number studying X-ray spectra of chemical elements. But Moseley hadn't a personal atomic theory.
When did Henry Moseley discover the atomic number?
1913
