If the primary ion is elastically scattered, the kinetic energy of the reflected primary ion will depend on which of the following?(a) Charge of the primary ion(b) Charge of the surface ion(c) Mass of the surface ion(d) Number of surface ionsI got this question in unit test.The origin of the question is Ion Spectroscopy topic in section Electron and Ion Spectrometers of Analytical Instrumentation

If the primary ion is elastically scattered, the kinetic energy of the

1.	If the primary ion is elastically scattered, the kinetic energy of the reflected primary ion will depend on which of the following?(a) Charge of the primary ion(b) Charge of the surface ion(c) Mass of the surface ion(d) Number of surface ionsI got this question in unit test.The origin of the question is Ion Spectroscopy topic in section Electron and Ion Spectrometers of Analytical Instrumentation
Answer» The CORRECT option is (C) Mass of the surface ION To explain I would say: If the primary ion is elastically SCATTERED, the KINETIC energy of the reflected primary ion will depend on the mass of the surface ion. The reflected ion is measured by ISS.

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