why first electron gain enthalpy is negative?

Asked by azeem drabu | 27th Aug, 2011, 03:08: AM

Expert Answer:

First electron gain enthalpy is not  negative always. But it is mostly negative as the protons in the nucleus exert a powerful charge on the electrons and bind them to the atom; so an addition of an electron lets the proton hold on to another electron and hence the strain on the other electrons is reduced. So in general it is negative.

Answered by  | 27th Aug, 2011, 03:17: AM

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