The following questions pertain to the ground (1s) and first two excited (2s and 2p) states of a lithium cation (Li^2+).
(a) What is the expectation value of the radius in the above three states?
(b) What is the expectation value of the potential energy in each state?
(c) What is the expectation value of the kinetic energy in each state?
(d) Which of the above states has the largest angular (rotational) kinetic energy?
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