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Compare the electron affinity of fluorine to the ionization energy of sodium. Does the process of an electron being “pulled” from the sodium atom to the fluorine atom have a negative or a positive ΔE? Why is NaF a stable compound? Does the overall formation of NaF have a negative or a positive ΔE? How can this be?
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Our tutors have indicated that to solve this problem you will need to apply the Lattice Energy concept. You can view video lessons to learn Lattice Energy. Or if you need more Lattice Energy practice, you can also practice Lattice Energy practice problems.
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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl 2nd Edition practice problems.