Disscuss briefly the factor affecting electron affinity with examples
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Factors Affecting Electron AffinityThe various factors which influence the electron affinity can be explained under following heads:-
1. NUCLEAR CHARGEGreater the nuclear charge, greater will be the attraction for the incoming electron and as a result larger will be the value of electron affinity.2. ATOMIC SIZELarger the size of an atom, larger will be the distance between the nucleus and the incoming electron. Thus, smaller will be force of attraction felt by incoming electron and hence smaller will be the value of Electron affinity.3. ELECTRONIC CONFIGURATIONStable the configuration of an atom, lesser will be its tendency to accept an electron and hence lower the value of its electron affinity.
1. NUCLEAR CHARGEGreater the nuclear charge, greater will be the attraction for the incoming electron and as a result larger will be the value of electron affinity.2. ATOMIC SIZELarger the size of an atom, larger will be the distance between the nucleus and the incoming electron. Thus, smaller will be force of attraction felt by incoming electron and hence smaller will be the value of Electron affinity.3. ELECTRONIC CONFIGURATIONStable the configuration of an atom, lesser will be its tendency to accept an electron and hence lower the value of its electron affinity.
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