試題詳解

複選題
68. NF₃ has a bond angle of 102.5º, while PF₃ has a bond angle of 96.3º. What is the best explanation for the larger bond angle in NF₃?
(A) The nitrogen 2s orbital participates more in bonding than the phosphorus 3s orbital does.
(B) Nitrogen is more electronegative than phosphorus.
(C) NF₃ has no unpaired electrons while PF₃ has two unpaired electrons.
(D) NF₃ is an ionic compound while PF₃ forms covalent bonds.
(E) NF₃ adopts a trigonal geometry, while PF₃ displays a trigonal planar configuration.