A.0.60 B.0.50 C.0.40 D.0.31
A.h2/(8mv2/3) B.3h2/(8mv2/3) C.4h2/(8mv2/3) D.9h2/(8mv2/3)
A.Sm(CO)>Sm(N2) B.Sm(CO)2) C.Sm(CO)=Sm(N2) D.無法確定