The chemical elements are arranged from left to right ... That means all of the elements in the third period — sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chlorine and argon ...

Coal, aluminium, cobalt, nickel, copper, zinc by genus/group, description, occurrence, examples of use and good to know.

Ever wondered what the most abundant element on Earth is? Or how the elements that make up our planet compare to those floating out in the vast universe?

and the atmosphere, the exterior crust of the earth is composed half of oxygen and one-fourth of silicon, while the other fourth is represented by other elements—aluminum, 7 per cent.; ...

This is made of aluminium. Aluminium is an element. 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 ...