The document discusses molecular structures, emphasizing concepts such as bond energy, chemical potential energy, and the distances between atomic nuclei. It highlights the relationship between electrostatic forces, work done, and the nature of attraction and repulsion in molecular interactions. Overall, it focuses on how these forces contribute to the energy dynamics within molecules.

1. Molecular structure
Bond Energy and Length

2. Chemical potential energy
H
Distance between nuclei
H

3. Chemical potential energy
HH
H H
H
Distance between nuclei
H

4. -
+
+

10. bond energy

11. Chemical Potential Energy

12. Chemical Potential Energy
ability to do
work

13. Chemical Potential Energy
ability to do
work
done when

14. Chemical Potential Energy
ability to do
work
done when
force

15. Chemical Potential Energy
ability to do
work
done when
force
acts through a
distance

16. Chemical Potential Energy
ability to do
work
done when
force
acts through a
distance

17. Chemical Potential Energy
ability to do
work
electrostatic
force
done when
e.g.
force
acts through a
distance

18. Chemical Potential Energy
ability to do
work
electrostatic
force
may be
done when
e.g.
force
acts through a
distance

19. Chemical Potential Energy
ability to do
work
electrostatic
force
may be
attraction
done when
e.g.
force
acts through a
distance

20. Chemical Potential Energy
ability to do
work
electrostatic
force
may be
attraction repulsion
done when
e.g.
force
acts through a
distance

21. Chemical Potential Energy
ability to do
work
electrostatic
force
may be
attraction repulsion
done when
e.g.
force
acts through a
distance

23. -
+
+

24. +
+
-

25. +
repulsion
+

26. +
repulsion
repulsion
+

27. +
repulsion
repulsion
+

28. +
repulsion
repulsion
+
-

29. +
repulsion
repulsion
+
-

30. +
+
-

31. -
+
+

32. - repulsion
+
+
-

33. - attraction
+
+
-

34. Net repulsion
-
+
+

37. ++
-
+
+
-