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  3. Chemistry
  4. The correct order of electron affinities of S, N,O and Cl is:

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Q. The correct order of electron affinities of S, N,O and Cl is:

Bihar CECEBihar CECE 2001Classification of Elements and Periodicity in Properties

Solution:

The electron affinity is amount of energy released when one electron is added to isolated gaseous atom. Its value increases in period and decreases in a group. The variation are in inverse relation to size. The correct order of electron affinities among given elements is
$ N < O < S < Cl $