Question

What is ionic hydride? What is its valency?

Answer 1

strongly electropositive metals like potassium or sodium form ionic hydride.in which hydrogen exist as H- ion .it's valency is 1.

Answer 2

A hydride is a binary compound of hydrogen with another element.... Strongly electropositive metals like Na, K, Ca form ionic hydride - NaH, KH, CaH2- in which hydrogen exists as H-ion....
The number of H atoms with which an element combinies to form its normal hydride is equal to its valency..

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