Its oxide has a high index of refraction, and is used frequently in wide-angle camera lenses.
Don't go outside to look for this element: it's never found free in nature, and only constitutes a few millionths of the Earth's crust. A few medicinal plants, such as aloe vera and ginseng, contain high concentrations, and researchers have reported that compounds containing this element may help control cancer, AIDS, high cholesterol, and pain. Its oxide has a high index of refraction, and is used frequently in wide-angle camera lenses. Because it can be purified better than any other semiconductor, its electronic properties have been studied in detail. FTP, name this element, situated after gallium in the periodic table and named for a European country.
Don't go outside to look for this element: it's never found free in nature, and only constitutes a few millionths of the Earth's crust.
germanium