Question

Among period 2 elements A , B , C and D , the one which has high electron affinity . A. Lithium B. Carbon C. Fluorine D. Neon

Answer 1

decreasing order:Ne,F,C,Li

Answer 2

Answer:

Option C. Fluorine, because across a period the atomic size decreases and nuclear charge increases, so electron affinity increases. thus electron affinity is highest for group 17 and least for group 1(inert gases do not have highest electron affinity because they have stable configuration and thus have zero electron affinity)

So, in this case, Fluorine is the answer as it is situated under period 2 and is under group 17(as group 17 has max E.A.)

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