Rucete ✏ Chemistry In a Nutshell
Electron affinity | In a nutshell
1 The energy needed to separate electrons from the negatively charged ion in a gas state.
2 The energy emitted when one electron is combined with an atom in a gas state.
3 The more Electron Affinity has negative charge(-), the more inclined it is to accept electrons.
4 In the same period, from left to right increases the tendency to accept electrons. (Increase Electron Affinity)
5 Halogen atom's electron affinity is highest.
6 Electron affinity of Metal has a greater positive value than Nonmetal.
7 X + e− → X− + energy
8 With the same principle as ionizing energy, there are some exceptions to the tendency to change (between group 1 and group 2, between group 14 and group 15).
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Chemistry in a nutshell