The electron affinity is an inherent property of the atom and it depends upon several factors.
Which of the following reactions would not proceed in the forward direction spontaneously? 

Options

A. `Xe + He^(+) to Xe^(+) + He`
B. `Si + Cl^(+) to Si^(+) + Cl`
C. `F^(-) + I to F + I^(-)`
D. `Be^(-) + B to B^(-) + Be`

Answer

C