Question
Prove mathematically that it is more energetically favorable for a fluorine atom to take an electron from a sodium atom than fora fluorine atom to take an electron from another fluorine atom.
Step 1
First, we need to consider the ionization energy (IE) of sodium and fluorine atoms. Ionization energy is the energy required to remove an electron from an atom. The ionization energy of sodium (Na) is 496 kJ/mol, and the ionization energy of fluorine (F) is 1681 Show more…
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Prove mathematically that it is more energetically favorable for a fluorine atom to take an electron from a sodium atom than for a fluorine atom to take an electron from another fluo- rine atom.
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Compare the electron affinity of fluorine to the ionization energy of sodium. Is the process of an electron being “pulled” from the sodium atom to the fluorine atom exothermic or endothermic? Why is NaF a stable compound? Is the overall formation of NaF endothermic or exothermic? How can this be?
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