Um I need help. Clean, dry air also contains argon. Argon is unreactive.
1. Explain, using ideas about electronic structure, why argon is unreactive.

2. Give 1 use of argon.

Explanation:

Of all the given forces , london dispersion force is the weakest inter-molecular force which is temporary in nature . This force results due to two adjecent atoms  or molecules becoming dipoles temporarily. This force exists among the atoms of inert gases.

Atoms having this force have lowest boiling point.