You're listening to Chemistry in its element brought to you by Chemistry World, the magazine of the Royal Society of Chemistry. Sodium, like most elements in the periodic table could be said to have a ...

There are 118 elements in the periodic table, each with a unique symbol and atomic number. Symbol: A one or two-letter abbreviation used to represent the element. Atomic number: The number of ...

Mrs Roberts: So, the chemical symbol is Al. See if you can see it in the periodic table. Cal: OK. It is. It's on the right hand side. It's right there. Magic. OK, well I might have been able to ...