The energy required to ionize sodium is 5.14 eV.If the energy needed to form Na⁺ and F^- ions from neutral sodium and fluorine atoms is 1.69 eV,the electron affinity of fluorine is A)3.45 eV B)5.14 eV C)1.69 eV D)6.83 eV E)2.79 eV

Question

Quizplus · Accepted Answer

The electron affinity of fluorine can be calculated using the equation: EA (F) = IE (Na) - (IE (Na⁺) + EA (F) + IE (F)) where IE is the ionization energy and EA is the electron affinity. Substituting the given values, we get: EA (F) = 5.14 - (1.69 + EA (F) + 17.42) Simplifying the equation, we get: EA (F) = 3.45 eV Therefore, the answer is (A) 3.45 eV.

The Energy Required to Ionize Sodium Is 5