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Characteristic K x-radiation of an element occurs when: A. the incident electron is absorbed by a target nucleus B. the incident electron is scattered by a target atom without an energy loss C. an electron is ejected from an outer shell of a target atom D. an electron in a target atom makes a transition to the lowest energy state E. the incident electron goes into the lowest energy state |
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Answer» D. an electron in a target atom makes a transition to the lowest energy state |
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