問題詳情
7. Which of the following statements is correct?
(A) An excited atom can return to its ground state by absorbing electromagnetic radiation
(B) 1s orbital in He+is larger (probability density is shifted outward) than the 1s orbital in H
(C) Energy of electromagnetic radiation increases as its frequency decreases
(D) The binding forces in a molecular solid include London dispersion forces
(E) none of these
參考答案