The most polar diatomic molecule that could be formed using only halogen atoms should be explained. Concept introduction: A diatomic molecule is formed by the bonding between two atoms only. If only one type of atoms are used in forming diatomic molecule then the molecule is symmetric and known as homo diatomic molecules like H 2 ,O 2 ,Cl 2 etc. If two different atoms are shared together by a bond then it is known as a hetero-diatomic molecule. Halogens are group 17 th elements which have seven electrons in their outermost orbit so by accepting one electron they get the complete octets. Halogens have following elements: F 9 ( F l u o r i n e ) , C 17 l ( C h l o r i n e ) , B 35 r ( B r o m i n e ) , I 53 ( I o d i n e ) a n d A 85 t ( A s t a t i n e ) Now, the more the electronegativity difference between sharing atoms more will be its polarity in bond formation. Further the property of electronegativity decreases down a group.

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Chapter 7, Problem 7.41PAE

Interpretation Introduction

Interpretation:

The most polar diatomic molecule that could be formed using only halogen atoms should be explained.

Concept introduction:

A diatomic molecule is formed by the bonding between two atoms only. If only one type of atoms are used in forming diatomic molecule then the molecule is symmetric and known as homo diatomic molecules like H₂,O₂,Cl₂ etc.

If two different atoms are shared together by a bond then it is known as a hetero-diatomic molecule.

Halogens are group 17^th elements which have seven electrons in their outermost orbit so by accepting one electron they get the complete octets.

Halogens have following elements:

${}_{9}F (F l u o r i n e), {}_{17}C l (C h l o r i n e), {}_{35}B r (B r o m i n e), {}_{53}I (I o d i n e) a n d {}_{85}A t (A s t a t i n e)$

Now, the more the electronegativity difference between sharing atoms more will be its polarity in bond formation.

Further the property of electronegativity decreases down a group.

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