Electron Affinity
- Created by: Jasmin
- Created on: 02-11-13 14:48
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- Electron Affinity
- 1st E.A of an element is the energy change when 1 electron is added to each atom in 1 mole of gaseous atoms
- 2nd E.A of an element is the energy change when 1 electron is added to each ion in 1 mole of slightly charged gaseous ions
- Endothermic +ve number
- Incoming electron is repelled by the negative ions
- Therefore energy has to be supplied to bring the ion and electron together
- Incoming electron is repelled by the negative ions
- Endothermic +ve number
- Fluorine is so small so there is repulsion as electrons are so close together therefore it is hard for electrons to be filled in
- Electron shielding
- Repuslion
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