7. Which of the following is necessarily a representation of the probability density of finding the electron somewhere in space? Select all that apply. a. ly (x)|2 b. y' (x) c. S y (x) y(x) dx d. u (x) e. 42(x) f. up (x) up(x) B. J_ .. ly(x)12 dx 8. What is the physical meaning of the wave function of a particle? The wave function has no physical meaning. It is a tool used for predicting the values a. of physical quantities. The wave function describes an electromagnetic wave that is emitted when a particle b. changes energy states. c. The wave function is the equation of motion, much like the kinematic equations from classical mechanics. d. The plot of the wave function shows us the path made by the particle as it moves through space. 9. Which statement about the Schrodinger equation in the following form is true? 12 24( x1) + U(x)'P( x, 1) = in P( x, 1) 2m 2x2 a. This is the time-independent Schrodinger equation; wave functions that satisfy it describe a particle at a particular instant in time. b. This is the time-dependent Schrodinger equation; wave functions that satisfy it describe the evolution of a particle state over time. c. This is the time-independent Schrodinger equation; wave functions that satisfy it describe the evolution of a particle state over time. d. This is the time-dependent Schrodinger equation; wave functions that satisfy it describe a particle at a particular instant in time. 10. The Pauli exclusion principle says that a. no two particles are exactly identical b. fermions are excluded from the quantum ground state c. electrons are fermions d. no two fermions can be in the same quantum state e. all bosons have spin