In chemistry, there are a variety of methods that scientists use to identify a chemical compound, including a molecular formula, molar mass and molecular diagram. The simplest formula of these is ...

Iron makes up about 5 per cent of the Earth's crust and is the most abundant element in the whole Earth (about 35 per cent). It is the second most abundant metal after aluminium and the fourth most ...

In chemistry, the chemical nomenclature of ionic and molecular compounds uses a systematic approach of prefixes to indicate the number of each element present in the compound. This chemical naming of ...