複選題23. Which of the following is a reasonable criticism of the Bohr model of the atom? (A) It shows the electrons to exist outside of the nucleus. (B) It does not adequately predict the ionization energy of the first-energy-level electrons for elements other than hydrogen. (C) It makes no attempt to explain why the negative electron does not eventually fall into the positive nucleus. (D) It does not adequately predict the ionization energy of the valence electron(s) for elements other than hydrogen. (E) It does not adequately predict the line spectrum of hydrogen.