Fluorine has the highest electro negativity among the halogens on the Pauling scale, but the electron affinity of fluorine is less than that of chlorine because
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a
the atomic number of fluorine is less than that of chlorine
b
fluorine do not show positive oxidation state
c
chlorine can accommodate an electron better than fluorine by utilising its large atomic size and vaccant d orbitals
d
small size, high electron density favours addition of an electron to fluorine than chlorine
answer is C.
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Detailed Solution
Due to empty d-orbital, screening effect decreases hence, tendency to attract electron increases.
Fluorine has the highest electro negativity among the halogens on the Pauling scale, but the electron affinity of fluorine is less than that of chlorine because