Covalent metal hydrides are compounds formed when metal atoms bond with hydrogen atoms through covalent bonds. In these compounds, the metal shares electrons with hydrogen, resulting in a stable structure. These hydrides often exhibit unique properties, such as low melting points and varying degrees of reactivity, depending on the metal involved. These compounds can be found in various applications, including catalysis and hydrogen storage. Examples of metals that form covalent hydrides include boron, silicon, and aluminum. Understanding these materials is essential for advancements in fields like energy and materials science.