by examining electron domain geometry, one can determine that the ammonia molecule (nh₃) has\none sp²…

by examining electron domain geometry, one can determine that the ammonia molecule (nh₃) has\none sp² orbital.\ntwo sp² orbitals.\nthree sp³ orbitals.\nfour sp³ orbitals.
Answer
Explanation:
Step1: Determine electron - domain number
Nitrogen in $NH_3$ has 3 bonding pairs (with 3 H atoms) and 1 lone - pair. So the total number of electron domains around N is 4.
Step2: Identify hybridization
When the number of electron domains is 4, the hybridization is $sp^3$. Nitrogen in $NH_3$ has 4 $sp^3$ hybrid orbitals, three of which are used for bonding with hydrogen atoms and one holds the lone - pair.
Answer:
D. four $sp^3$ orbitals