Question

What special property of the noble gases makes them unreactive? The boiling points and melting points of the noble gases increase steadily from Heto XeExplain.

Short answer

Greater the mass, the greater the Intermolecular force, which makes the gases have high boiling and melting points.

Step-by-step solution

Define Elements

An element is a pure material made up entirely of atoms with the same number of protons in their nuclei. It cannot be broken down into smaller substances by chemical reactions.

Explanation of why noble gases' boiling and melting point increase steadily.

In order to gain knowledge ofthe special property of the noble gases that make them unreactive.

Also, explain why the noble gases' boiling points and melting points are increasing from Helium to xenon.

We analyze the explanation below given as:

Noble gases are placed in group 8A of the periodic table of elements. Since they are in the group of 8A, it means that they have eight electrons on their valence shell. These electrons are the maximum number of electrons that any valence shell can have.

It means that they are stable since they will not accept or transfer electrons from other atoms. The full valence shell makes them Inert or unreactive since they will no longer participate in the bonding.

Also, it is said that the noble gases' boiling point and melting point increase from helium to xenon since as they go down the group, the atomic mass of the element increases.

Therefore, the greater the mass, the greater the intermolecular force, which makes them have a high boiling point and melting point.