Do you know what element Ar is? Ar is Argon. Argon is a colorless and odorless gas that is present in a very small part of ...

The Periodic Table is a well-organized chart that contains all 118 known elements in the universe. These elements are the ...

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 ...