Home : Structures : Chemical Symbols
You will have to learn these, and other, chemical symbols for the terminal GCSE exam. For the other chemical symbols have a look at
the periodic table (you don't have to learn all of them).
Last lesson we saw how four hydrogen atoms can join to one carbon atom to form methane.
So methane is a molecule with one carbon atom and four hydrogen atoms - the chemical symbol for this molecule is: CH4.
The molecule sodium chloride is joined by ionic bonds: it contains one sodium atom and one chlorine atom - its chemical formula is NaCl.