In contrast to NH 3 , the rest of the Group 15, MH 3 compounds, show relatively poor Lewis base character. Why is this?

The orbitals in the heavier Group 15 hydrides are not properly hybridized, making the lone pair less available for bonding, reducing their Lewis base character compared to NH₃.

In contrast to NH 3 , the rest of the Group 15, MH 3 compounds, show relatively poor Lewis base character. Why is this?

The orbitals in the heavier Group 15 hydrides are not properly hybridized, making the lone pair less available for bonding, reducing their Lewis base character compared to NH₃.

Solved

In Contrast to NH₃, the Rest of the Group 15

Question 16

Multiple Choice

In contrast to NH₃, the rest of the Group 15, MH₃ compounds, show relatively poor Lewis base character. Why is this?

A) There are fewer valence electrons available.
B) For the rest of the Group 15 hydrides, the orbitals are not properly hybridized and the lone pair is not readily available for bonding.
C) The centres are sterically hindered due to short bond lengths and it is difficult to coordinate to the lone pair.
D) The hydrides are ionic.

Correct Answer: