Hydride

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

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

Formed when hydrogen reacts with highly reactive alkali metals (Group 1) or alkaline earth metals (Group 2, like Calcium). They are generally grouped into three categories based

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

Formed when hydrogen bonds with non-metals (Groups 13–17).

They often retain metallic properties like luster and conductivity. Interestingly, they are often "non-stoichiometric," meaning the ratio of hydrogen to metal isn't a fixed whole number (e.g., LaH2.87cap L a cap H sub 2.87

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