A covalent hydride differs from an ionic hydride in that the covalent hydride: A) has a relatively high melting point. B) decomposes to H₂(g) and the parent metal after heating. C) is formed by hydrogen and less electropositive metals such as the transition metals. D) is relatively volatile and has a low melting point. E) is typically a nonvolatile solid in a lattice framework.

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Covalent hydrides are typically volatile liquids or gases with low melting points, unlike ionic hydrides, which are typically nonvolatile solids with high melting points.

A Covalent Hydride Differs from an Ionic Hydride in That