Why they called noble gases?

The inert gases are also known as noble gases. They are a group of elements located in group 18 (VIII A) of the periodic table, which include Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn).

The noble gases are called inert gases because they have a full outermost electron shell, which makes them very stable and non-reactive under normal conditions. This is due to their unique electronic configuration, which includes a complete set of valence electrons.

They do not readily form compounds with other elements and are therefore considered “noble” or “inert.” However, under certain conditions, such as in high-energy environments, the noble gases can form compounds with other elements.

Inert Gases or Noble gases Properties

The inert gases, also known as noble gases, have several unique properties. Here are some of the most notable properties of these elements:

Non-reactivity: The inert gases are highly stable and do not readily react with other elements to form chemical compounds. This is due to the fact that they have a full outermost electron shell, which makes them less likely to lose or gain electrons.

Colorless and odorless: All of the inert gases are colorless and odorless in their natural state.

Low boiling and melting points: The noble gases have very low boiling and melting points, which means they exist as gases at room temperature and pressure.

Density: The density of inert gases is relatively low compared to other elements, such as metals.

Insolubility: The noble gases are insoluble in water and most other solvents.

Thermal conductivity: The inert gases have high thermal conductivity, which means they can conduct heat very well.

Electrically neutral: Inert gases are electrically neutral, meaning they have no overall charge.

Monoatomic: All of the inert gases exist as monoatomic elements, meaning they exist as single atoms rather than as molecules.

Helium’s unique properties: Helium, the lightest of the inert gases, has some unique properties. For example, it has the lowest boiling and melting points of any element, and it cannot be solidified under normal conditions.

These unique properties of the inert gases make them useful in a variety of applications, such as in lighting, welding, and cryogenics.