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Element of wh...

Question

Element of which atomic number has highest electron affinity?

A

35

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B

17

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C

9

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D

53

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Solution

The correct option is B 17
The element of atomic number 17 (chlorine) has the highest electron affinity.
Chlorine has the most negative electron affinity of $- 348.3 k J / m o l$ .

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