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What is Mosley’s law ? Explain briefly its importance.

What is Mosley’s law ? Explain briefly its importance.

Grade:upto college level

1 Answers

Apoorva Arora IIT Roorkee
askIITians Faculty 181 Points
7 years ago
Moseley's lawis anempirical lawconcerning the characteristicx-raysthat are emitted byatoms. The law was discovered and published by the English physicistHenry moseleyin 1913. It is historically important in quantitatively justifying the conception of the nuclear model of the atom, with all, or nearly all, positive charges of the atom located in the nucleus, and associated on an integer basis withatomic number. Until Moseley's work, "atomic number" was merely an element's place in the periodic table, and was not known to be associated with any measureable physical quantity.Moseley was able to show that the frequencies of certain characteristic X-rays emitted from chemical elements are proportional to the square of a number which was close to the element's atomic number; a finding which supported Van Den BroekandBohr's model of the atom in which the atomic number is the same as the number of positive charges in the nucleus of the atom.
Thanks and Regards
Apoorva Arora
IIT Roorkee
askIITians Faculty

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