Hydride -

Hydrogen atoms occupy the small holes (interstices) in the metal's crystal lattice.

They are generally grouped into three categories based on the type of chemical bond involved: 1. Ionic (Saline) Hydrides hydride

Not enough electrons to form conventional bonds (e.g., B2H6cap B sub 2 cap H sub 6 Electron-precise: Perfect match of electrons (e.g., CH4cap C cap H sub 4 - Methane). Electron-rich: Have "lone pairs" of electrons (e.g., NH3cap N cap H sub 3 - Ammonia, or H2Ocap H sub 2 cap O 3. Metallic (Interstitial) Hydrides Hydrogen atoms occupy the small holes (interstices) in

A is a compound in which hydrogen is combined with another element. While we usually think of hydrogen as a positive ion ( H+cap H raised to the positive power Electron-rich: Have "lone pairs" of electrons (e

These are mostly gases or volatile liquids held together by shared electrons. Sub-types:

Formed by many transition metals (d-block and f-block elements).