Afinidad electrónica
Z | Elemento | Afinidad electrónica (kJ/mol) |
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Afinidad electrónica
Es la energía liberada cuando un átomo gaseoso en su estado fundamental capta un electrón libre y se convierte en un ión mononegativo.
X +e- X- + A.E.
Info
De acuerdo con las convenciones, el signo de esta energía liberada tendrá un valor + si la recibe el agente exterior, o bien negativa desde el punto de vista del átomo que la pierde. Ambas escalas, positiva y negativa, existen así es que debemos darnos cuenta del sentido que se le asigna.
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