What orbitals does the N in NH3 use to form its bonds?

Question

1. s and p atomic orbitals

2. sp3 hybrid orbitals

3. sp2 hybrid orbitals

4. sp hybrid orbitals

5. none of these

Answer 1

There are three covalent bonds of N with three Hs. There is a lone pair about the N. This leaves sp3 - count them up, 1 s, and 3 p = 4 orbitals (1 lone + 3 covalent).

2. sp3 hybrid orbitals