Calcium
... Colour: silvery white/grey · Classification: Metallic Lithium is mixed (alloyed) with aluminium and magnesium for light-weight alloys, and is also used in batteries, some greases, some glasses, and in medicine. · sodium · Symbol: Na · · Colour: silvery white · Classification: Metallic Soap is generally a sodium salt of fatty acids. The importance of common salt to animal nutrition has been recognized since prehistoric times. The most common compound is sodium chloride, (table salt). · : aluminium · Symbol: Al · · Colour: silvery · Classification: Metallic It is somewhat decorative. It is easily formed, machined, and cast. Pure aluminium is soft and lacks strength, but alloys with small amounts of copper, magnesium, silicon, manganese, and other elements have very useful properties. Aluminium is an abundant element in the earth's crust, but it is not found free in nature. The Bayer process is used to refine aluminium from bauxite, an aluminium ore. · sulphur · Symbol: S · · Colour: lemon yellow · Classification: Non-metallic Sulphur is found in meteorites, volcanoes, hot springs, and as ...