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
Formed by many transition metals (d-block and f-block elements). hydride
They are being heavily researched for hydrogen storage in fuel-cell vehicles because they can soak up and release hydrogen gas like a sponge. Not enough electrons to form conventional bonds (e
