【简答题】Writing: Suppose you are a close friend of the Elliott family. Write a letter of condolence(吊唁) to Pauline on the death of Frank. Write a letter of about 130 words.
【简答题】A)They are talking about an advertisement. B) They are talking about an interview. C)They are talking about the time for the interview. D)They are talking about the interviewees.
【简答题】(1)Write the possible values of l when n=5. (2)Write the allowed number of orbitals (a) with the quantum numbers n=4,l=3;(b) with the quantum numbers n=4;(c) with the quantum numbers n=7,l=6,m=6;(d) w...