1. The problem statement, all variables and given/known data How would you expect the interaction to compare in the following situations, all of which occure in a A2 molecule. 1) interaction of two 1s Aos in H2 2)interaction of two 1s Aos in N2 3)interaction of a 2s and a 2px AO 4)interaction of two 3s in O2. 3. The attempt at a solution 2)1s orbitals are way too contracted. poor interaction 3)hardly any interaction due to different symmetry 1)good interaction 4)3s are too expanded to have a good interaction So what's the order? I'm guessing: 1>4>2>3 or perhaps 1>2>4>3 ?