The electron affinity of the 5th group increases down the groups of the periodic table because the electrons are placed in a higher energy level far from the nucleus.
What is electron affinity?
Electron affinity is the energy released when an electron is attached to an atom or molecule.
Electron affinity is used as a measure of its ability to form an anion.
The electron affinity of elements decrease down the group and increase from left to right across the periodic table because the electrons are placed in a higher energy level far from the nucleus.
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