Question

Among the cah2 beh2 and bah2 order of ionic character is

Answer 1

Hello Dear.

Among CaH₂ , BeH₂ and BaH₂ The order of Ionic character is ↓

___________________
BeH₂ < CaH₂ < BaH₂   
___________________

Reason/ Explanation →

(i) On moving down the group , Metallic character of any metals increases so definitely Ionic character of any metal oxide increases.

(ii) Electronegativity decreases down the group , So the Ionic character of their hydride increases.  

(ii) The Ionic character of any bond depends on the electronegativity of the atom which involved there. So the higher the difference b/w an electronegative atom tends Smaller the Ionic character.


Hope it Helps.

Answer 2

The order of ionic character of the compounds  CaH2 BeH2 and BaH2 are-
BaH₂> CaH₂ >BeH₂