A

David

Darling

electron affinity

Electron affinity

Showing how electron affinity increases as you go up or to the right on the Periodic Table.


Electron affinity is the energy released when an electron is added to a neutral atom in the gaseous state, i.e.

 

    A(g) + e → A-(g) + energy

 

Electron affinities may be estimated using a Born-Haber cycle.