Question

mark for review
1 which of the following can be inferred from the diagram above that shows the dependence of potential energy on the internuclear distance between two atoms?
a the atoms form a bond with a bond length of 25 pm.
b the atoms form a bond with a bond length of 75 pm.
c the net force between the atoms is attractive at 25 pm.
d the net force between the atoms is attractive at 75 pm.

Explanation:

Step1: Understand bond - length concept

The bond - length is the internuclear distance at which the potential energy is minimum.

Step2: Analyze the graph

From the graph of potential energy vs internuclear distance, the minimum of the potential - energy curve occurs at an internuclear distance of approximately 75 pm. This is the bond - length. When the atoms are at this distance, they form a bond.

Answer:

B. The atoms form a bond with a bond length of 75 pm.