Which are closer together: the two nuclei within potassium fluoride, KF, or the two nuclei within molecular fluorine, F2?
A. KF
B. F2
C. Both are the same. Any atom bonded to F will have the same internuclear separation.
D. It makes little sense to compare two molecules which exist in different physical states. KF is a solid, while F2 is a gas.
Answer: B
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Fill in the blank(s) with correct word