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By I. E Irodov

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Extra resources for A collection of problems in atomic and nuclear physics

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L is the reduced mass of a molecule,. er, vl~ =0, 1, 2, ... , x is the anharmoniClty coeffiCIent (x = 0 for harmolllc oSCIllator). v selection rule: L\v= { ±1, ±1, if x=O ±2, •.. in other cases. • Interaction energy as a function of the distance bet ween the nuclei of a diatomic molecule is shown in Fig. 23, where D is the dissociation energy. • Mean energy of a quantum harmonic oscillator (E)= n00 2 + en6J /noo kT -1 . 3) • Fig. 24 illustrates the diagram describing the emergence of red (a) and violet (b) satellites in the Raman scattering of light.

M t e y sheA~·3t~e COfoltrarf t~Fthe alssumption of uniform filling of nuclear , spm 0 a nuc eus equals 5/2 and not 1/'1 Su . that the magnetic moment equal to 2 63 I I . 'l'S defi d b ~. ppo~mg t d' ' . 58 and gl = 1. 1) where A is the decay constant, 't is the mean lifetime of radioactive nuclei, T is their half ~ life. • Specific activity is the activity of a unit mass of a substance. • Poisson distribution law . (n)n p(n)= e-(n) 11! 2) where p (n) is the probability that n random events will occur in a certain period of time, (n) is the average number of times the event occurs during this period.

A Fig. 748 for a NaCI type lattice 1. 3) where q is the ionic charge, l' is the smallest distance between the ions of opposite charge, a, ~, and n are constants (a is the Madelung constant). The structure of NaCI and CsCI crystals is illustrated in Fig. 25. • Compressibility (due to hydrostatic pressure) K = -~ V dV dp' where V is the volume of a crystal, p is the pressure. 4) CRYSTALLINE STRUCTURE. 1. Knowing the density and crystal type, determine the lattice constant of sodium and copper. 2.

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