Question

Explain why successive electron affinities have negative value?

Answer 1

Explanation:

First electron affinities have negative values. For example, the first electron affinity of chlorine is -349 kJ mol-1. By convention, the negative sign shows a release of energy. When an electron is added to a metal element, energy is needed to gain that electron (endothermic reaction).

Answer 2

Answer:

♡♡♡♡♡ First electron affinities have negative value. for example, the first electron affinity of chlorine is - 349 KJ mol ^-1. By convention, the negative Sigh a religion of energy. when an electron is added to a metal element energy is needed to gain that electron (endothermic reaction).♡♡♡♡♡♡♡