Q.

In a period electronegativity is highest for

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a

Chalcogen

b

Halogen

c

Inert gas 

d

Alkali metal 

answer is B.

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Detailed Solution

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  • 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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