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​Q. AMONG LiCl , BeCl 2 , RbCl , MgCl 2 THE COMPOUNDS WITH GREATEST AND LEAST IONIC CHARACTER RESPECTIVELY ARE? PLEASE GIVE REASON FOR THE SAME.

​Q. AMONG LiCl , BeCl2 , RbCl , MgCl2 THE COMPOUNDS WITH GREATEST AND LEAST IONIC CHARACTER RESPECTIVELY ARE? PLEASE GIVE REASON FOR THE SAME.

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2 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
9 years ago
compounds having the greatest ionic character-RbCl
least ionic character-BeCl2
as we know that on going along the period the electronegativity increases and on going down the group electronegativit decreases.
The aninoinc part here is same,therefore the cation having more electronegativity have more covalent character.
Electronegativity order is Rb<Li<Mg<Be

Thus it can be seen that the percentage of ionic character is directly proportional to the electronegativity of the element
Kushagra Madhukar
askIITians Faculty 628 Points
3 years ago
Dear stident,
Please find the answer to your question below.
 
Compounds having the greatest ionic character-RbCl
least ionic character-BeCl2
as we know that on going along the period the electronegativity increases and on going down the group electronegativity decreases. The aninoinc part here is same,therefore the cation having more electronegativity have more covalent character.
Electronegativity order is Rb
Thus it can be seen that the percentage of ionic character is directly proportional to the electronegativity of the element.
 
Hope it helps.
Thanks and regards,
Kushagra

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