Question

What is the total number of electron domains in the molecule with the molecular formula AX4E2?

1) 2
2) 4
3) 6
4) 8

Answer 1

The total number of electron domains in the molecule AX4E2 is 6.

Step-by-step explanation:

The molecular formula AX4E2 indicates that there is one central atom (A) bonded to four other atoms (X) and two lone pairs of electrons (E). The total number of electron domains is equal to the sum of the number of bonded atoms and the number of lone pairs. So in this case, there are 4 bonded atoms + 2 lone pairs = 6 electron domains.