are naturally occurring rocks that contain metal or metal compounds in sufficient amounts to make it worthwhile extracting them.

Earth’s core could contain helium from the early solar system. The noble gas tucks into gaps in iron crystals under high pressure and temperature.

The iron oxide is no longer a pure metal, it is a dull, dark-coloured, metal compound. When you burn magnesium in the air in the same way that the iron did, the magnesium reacts with oxygen to ...

In addition to direct applications, MOFs have been used as unique precursors for the construction of inorganic functional materials with unparalleled design possibilities, such as carbons, metal-based ...

This compound is presented in the shape of a massive lattice-type material of metal cations and organic ligands (metal-organic framework, MOF). A particularity of Gd(III) compounds is that they ...