How can we express periodic trend of electron affinity ??
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How can we express periodic trend of electron affinity ??
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Answer:
The less valence electrons an atom has, the least likely it will gain electrons. Electron affinity decreases down the groups and from right to left across the periods on the periodic table because the electrons are placed in a higher energy level far from the nucleus, thus a decrease from its pull
Explanation:
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Answer:
As you move from left to right across a period the electron affinity increases this is due to increase in nuclear charge and decrease in atomic radius which binds the extra electron more tightly to the nucleus
the electron affinity decreases from top to bottom in a group this is due to increase in shielding effect due to increase in shielding effect added electrons and less tightly to the nucleus as a result less energy is released.
Explanation:
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