DAGFEВEВa = lattice spacing(a) What is the largest possible angular momentum of the electron when it is at itsafter the electronic transition? (Hint: first use the Bragg diffraction condition to get the range ofwavelengths of the emitted electrons. Then use the DeBroglie relationship to find the range ofthe electron kinetic energies. Finally, apply this information to Bohr model to find the constrainton (inequality containing) Z, n; and ni.)hal state nf(b) What is the greatest possible energy of the electron when it is at its final state nț after theelectronic transition? A single electron ion MZ-1)+ with atomic number Z<84 emits a photon during an unknownelectronic transition from some initial state n; to some final state nf. The photon then strikes anosmium surface, which has a work function O = 5.93 eV and causes an electron to be emitted.Many such photons create a beam of electrons (all with the same kinetic energy) that is directedat a single crystal nickel sample at normal incidence. The electrons are scattered from thecrystal and it is observed that they do so with only two (2) non-zero diffraction angles (i.e., 2different values of 0). From the DeBroglie-Bragg relation it is determined that the diffractioncorresponds to a lattice spacing of a = 352.4 pm.

Regular reflection occurs when all of the reflected rays from a certain smooth surface are parallel…

Answered: A single electron ion M(2-1)+ with…

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Electrically excited mercury atoms have particularly strong emission of 4.9 eV photons, corresponding to a transition of one of the atom’s electrons from a higher energy state to a lower. Mercury vapor absorbs light of this wavelength as well; the energy of the photon moves an electron from the lower state to the higher.It’s also possible to produce an excitation through other means. If an electron with a kinetic energy of 4.9 eV strikes a mercury atom, it can transfer energy, moving an electron in the mercury atom from the lower level to the higher. The electron loses kinetic energy in the process; this is an inelastic collision. Electrons with kinetic energies lower than this transition energy undergo elastic collisions, leaving their kinetic energy unchanged.This was the idea behind the Franck-Hertz experiment, a classic experiment of early-20th-century physics. The basic setup is illustrated in Figure P28.88a. A tube is filled with mercury vapor. A heated electrode emits…
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