Why Are Noble Gases Called Noble? What is significance of saying?

If you search Noble in google, it will say noble means “high principle or moral”.

The noble gases make up the last column of elements in the periodic table. They are commonly called Group 18, the inert gases, the rare gases, the helium family, or the neon family.

The group consists of 7 elements: helium, neon, argon, krypton, xenon, and radon.

These elements are gases at ordinary room temperature and pressure.

Noble gases are characterized by:

low reactivity

low boiling point

melting and boiling point close to each other (liquid over a narrow range)

very low electronegativity

high ionization energy

usually colorless and odorless

gases under ordinary conditions

mono-atomic gases

However, just as a nobleman can be pushed into losing his dignity, getting a noble gas to react is possible. With a great enough energy supply, the outer electrons of a noble gas can be ionized, and once the gas is ionized, it can accept electrons from other elements. Even under these conditions, noble gases do not form many compounds. Only a few hundred are known to exist.

The lack of reactivity makes these elements useful for many applications. They can be used to shield reactive chemicals from oxygen.

They are ionized for use in lamps and lasers.