Why do halogens possess very high values of electronegativity? Arrange – InterviewSolution

1.	Why do halogens possess very high values of electronegativity? Arrange the halogens in the order of decreasing electronegativity.
Answer» Since halogens have eletronic configuration, ns² np⁵, they have tendency to accept one electron to complete an octet. Group 17 elements have the lowest atomic radii and high effective nuclear charge. Therefore halogens have high values of electronegativity. The decreasing order of electronegativity is, F > Cl > Br > I

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