(To make the graph easier to read use the range [R=280:380])
b) What is the bond energy between two He atoms at their equilibrium separation? Compare your answer with the covalent bond energy in H2 of 436 kJ mol-1.
Print out a hard copy of the final graph (with labelled axes and a title) that you use to answer the questions in this exercise (Printing the graph is achieved by clicking with the right mouse button in the graph window, and selecting the option "Print", and then subsequently clicking OK twice).
To make the graph easier to read you can apply a grid to the plot by using the command set grid followed by replot.
If you need help you can page back through the notes.
When you have finished this exercise, go to the next page.