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OpenStudy (vera_ewing):
Which of the following elements can be detected by XPS? A. Lithium and boron B. Hydrogen and lithium C. Boron and helium D. Helium and hydrogen
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OpenStudy (vera_ewing):
@Kainui It's C right?
OpenStudy (kainui):
Why do you think it's C? I have never heard of XPS before so I don't know by what mechanism it works on
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