Among CaH_(2), BeH_(2), BaH_(2) the order of ionic character is :

1.	Among CaH_(2), BeH_(2), BaH_(2) the order of ionic character is :
Answer» `BaH_(2) LT BeH_(2) lt CaH_(2)` `BeH_(2) lt CaH_(2) lt BaH_(2)` `BeH_(2) lt BaH_(2) lt CaH_(2)` `CaH_(2) lt BeH_(2) lt BaH_(2)` Solution :Because Be, Ca and Ba all three elements are of group two. For these three, as their electronegativity decreases, their atomic radius INCREASES and hence their ionic characteristic (ionic PROPERTIES) increases.

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