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11 August, 04:01

Consider the elements in Group 14. Which element has the highest electron affinity? A) Carbon B) Germanium C) Lead D) Silicon

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  1. 11 August, 04:26
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    Electron affinity is a measure of the tendency of a neutral atom to gain electrons and form a negative ion. It can be represented by a general equation:

    X + e - → X-

    The value of electron affinity decreases on moving down a group. This is because on moving down a group the atomic size increases as a result the added electron feels less pull or attraction towards the nucleus.

    In group 14, Carbon 'C' is the first member and therefore will have the highest electron affinity.

    Ans : A) Carbon
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