【評論主題】65. What are the values of bond order belonging to , respectively?(A) 1.5, 2.5 (B) 2.5, 1.5 (C) 2, 3

【評論內容】

O2之B.O.為2 之B.O.為1.5, 2.5

【評論主題】14. In an atom, how many electrons can be contained at most at the 4th orbit?(A) 9 (B) 18 (C) 32 (D)

【評論內容】

軌域所能容納最大電子數2*n^2

此題2*4^2=32