Now, each element has a chemical symbol made of one or two letters. Cal: Right, OK. And what is the chemical symbol for aluminium? Mrs Roberts: So, the chemical symbol is Al. See if you can see it ...

organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic number. Scientists use the periodic table to quickly refer to information ...

You cannot easily separate an element from a compound. Most of the elements are metals. Aluminium (Al) is used to make ... know that there are actually 118 chemical elements.