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Electron affinity

Electron affinity

It is the amount of energy given out when an electron is added to a neutral gaseous atom. This results in the formation of an anion.

For example Cl + e– → Cl + energy. The electron affinity of chlorine is 348 kJ mol-1.

Electron affinity changes across a period. The electron affinity of the atoms increases from left to right along a period…

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