The electron of doubly-ionized lithium Li2+ (Z = 3) is in the second excited state. The maximum wavelength of light that can remove this electron from the ion is: a) 40.5 nm b) 91.2 nm c) 124 nm d) 365 nm e) 821 nm
Compton effect
The incoming photons' energy must be in the range of an X-ray frequency to generate the Compton effect. The electron does not lose enough energy that reduces the wavelength of scattered photons towards the visible spectrum. As a result, with visible lights, the Compton effect is missing.
Recoil Velocity
The amount of backward thrust or force experienced by a person when he/she shoots a gun in the forward direction is called recoil velocity. This phenomenon always follows the law of conservation of linear momentum.
The electron of doubly-ionized lithium Li2+ (Z = 3) is in the second excited state. The maximum
a) 40.5 nm b) 91.2 nm c) 124 nm d) 365 nm e) 821 nm
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