Question

1. the bond angle is the angle between

a. the sigma and pi bonds in a double bond.
b. the nucleus and the bonding electrons.
c. two terminal atoms and the central atom.
d. the orbitals of a bonding atom.

Explanation:

The bond angle is defined as the angle between two terminal atoms and the central atom in a molecule. This is a fundamental concept in molecular geometry. Option a refers to bonds within a double bond, not the bond angle. Option b is about the relationship between the nucleus and bonding electrons, not the angle. Option d is about orbitals of a bonding atom, not the angle between atoms.

Answer:

C. two terminal atoms and the central atom.