Question

Collect the information about reactivity of VIIIA group elements (noble gases)
from internet or from your school library and prepare a report on their special character when compared to other elements of periodic table

Answer 1

Answer:

These elements are helium, neon, argon, krypton, xenon and radon.

why are they called noble gases?

They are known as noble gases or inert gases because they are unreactive.

If we look at the electronic configuration of noble gases, we would notice that except helium, all other inert gases have 8 electrons (helium has 2) in their outermost shells.

The atoms of noble gases already have complete outer shells, so they have no tendency to lose, gain, or share electrons. This is why the noble gases are inert and do not take part in chemical reactions

USAGE:

These elements are used in lamps, such as neon lights and headlamps with krypton, and lasers.

Helium is used in balloons, for deep-sea diving air tanks.

HOPE IT HELPS YOU!!