Question

Which of the following hybrid atomic orbitals would you consider most useful for approximating a molecular orbital scheme around the N in NH3?

Select one:

a. sp2

b. 2s and 2p

c. sp3

d. sp

Answer 1

Answer:

c. sp³

Explanation:

:NH₃ has 4 areas around the molecule where electrons are found: 3 bonds and 1 lone pair. In order to minimize electron repulsion, NH₃ will form 4 equal hybridized orbitals that orient themselves in a tetrahedral geometry. There are 1 s valence atomic orbital and 3 p valence atomic orbitals available, so they will all combine to form 4 sp³ orbitals.