Noble gases

1. Name the noble gases and list their symbols
Helium- He, Neon- Ne, Argon- Ar, Krypton- Kr, Xeon- Xe, Radon- Rn

2. Explain why noble gases are so un reactive
Noble gases are so un-reactive because they have a full outer shell, so they are stable without having to react to gain or lose electrons.

3. Even though noble gases are usually un reactive some do form compounds under certain extreme conditions. Examine what compounds the noble gases form.
Usually heavier noble gases can form compounds, especially with fluorine and oxygen.
The compound that argon forms is- HArF
Krypton can form KrF2 when in reacts with fluorine
Radon can form RnF2.