21. Draw the Lewis structures of the molecules below, and use them to answer the followingquestions.
問題詳情
21. Draw the Lewis structures of the molecules below, and use them to answer the followingquestions. How many of the molecules have no dipole moment?BH3, NO2, SF6, O3 and PCl5 (A) 2 (B) 4 (C) 1 (D) 3 (E) they are all polar.