19. Which of the following statements about the hydrogen atom ground state is
INCORRECT:
(A) It is described by the quantum numbers n =1； 1 = 0； m = 0.
(B) The electron's angular momentum equals plank constant, h.
(C) The wave function is spherically symmetrical.
(D) The wave function decreases exponentially as a function of r.
(E) The radial distribution function has its maximum at the Bohr radius.
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