Metallic oxides are compounds formed when metals react with oxygen. They typically consist of a metal element combined with oxygen, resulting in a solid substance. These oxides can vary in properties, such as color and conductivity, depending on the metal involved. Common examples include iron oxide and copper oxide, which are often found in nature and used in various applications. These compounds play a significant role in industries, including electronics and materials science. For instance, zinc oxide is used in sunscreens and titanium dioxide is utilized in paints and coatings. Metallic oxides are also important in catalysis and environmental processes.