Question

State whether the following statement is true or false

Fluorine has higher electron affinity than chlorine.

विकल्प

• True

• False

Answer 1

False.
Concept Insight:  (i) There is inverse relation between atomic size and electron affinity. More is the size, less is the electron affinity and vice versa because more is the size of atom, more is the distance between the nucleus and last shell to which electron enters. This results in decrease in force of attraction between the nucleus and incoming electron and hence the electron affinity decreases. Fluorine has smaller size than chlorine so it must have less electron affinity than chlorine.