Contains only Topic 1 and 5 so far!!
| Front | Explain the melting points for Nitrogen, Oxygen, Fluorine and Neon. |
| Back | Nitrogen, Oxygen, Fluorine and Neon have a simple molecular structure held with weak van der waals forces. These intermolecular forces don't require much energy to overcome so these molecules have relatively low, similar melting points. |
| Front | What is atomic number? |
| Back | Atomic number is represented using Z and is equal to the number of protons in an atom. |
| Front | Define Relative Molecular Mass (Mr) |
| Back | The mean mass of a molecule of a compound, relative to one twelfth of the mean mass of an atom of the carbon-12 isotope. |