Hydride Official

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

When they react with water, they release hydrogen gas and form a base. Example: Sodium hydride ( NaHcap N a cap H ), often used in organic chemistry as a powerful base. 2. Covalent (Molecular) Hydrides

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 hydride

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

These are mostly gases or volatile liquids held together by shared electrons. Sub-types: Formed by many transition metals (d-block and f-block

), in many hydrides, it acts as the more electronegative partner, sometimes even forming a negative anion ( H−cap H raised to the negative power

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 These are mostly gases or volatile liquids held

These are crystalline, high-melting-point solids.