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In a period electronegativity is highest for

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a
Chalcogen
b
Halogen
c
Inert gas 
d
Alkali metal 

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detailed solution

Correct option is B

  • Electronegativity is defined as the ability of an atom to pull electrons towards itself. 
  • Since they need only one electron to complete an octet, halogens have high attraction towards electrons and, consequently, have high electronegativity values.

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