Describe the properties of noble gases. based on their electronic arrangement, explain whether they can exist alone in nature.

The properties of noble gases are:

1. Noble gases or otherwise called inert gases  are stable and non reactive or more correctly they are less reactive.

2. All the noble gases are monoatomic.

3. They are all colorless,odorless gases.

4. They have very low melting and boiling points due to low interatomic attractions.

They can exist alone in nature,as they have completly filled electrons in their shells.

Since their valence electrons are complete,they are stable, and can exist as atoms itself.

So they dont need to form bonds to form a molecule,hence all noble gases are monotaomic or exists alone in nature.