b. Why do you think this might be the case ? 16. If you have two atoms at some distance from each other as shown below, would you expect them to: (circle one) attract each other repel each other b. What causes the attraction [repulsion ? 17. As two atoms begin to move closer to one another from a great distance, the PE begins to: (circle one) increase decrease 18. Answer the following question with evidence and reasoning I. Claim: Given that we know energy is not created or destroyed , when atoms come together from a large distance , energy is (circle one)... Absorbed Released ii. Evidence :What evidence from the graph (5) supports your claim ? iii. Reasoning :Explain why the evidence from the graph supports your claim . 19. Oxygen atoms form covalent bonds with each other but Ne and Ar atoms do not. The attractive forces that pull 2 Ne atoms or 2 Ar atoms together are caed London Dispersion forces . . I. What can you say about the relative strength of covalent bonds compared to London Dispersion forces ? ii. In comparing Ar and Ne, how does the size of an atom affect the strength of the London Dispersion attractive forces