Question

Explain Group $\mathrm{VIII}$ Elements.

Answer 1

Group $\mathrm{VIII}$:

• These elements are known as noble gases.
• The valence electrons of the group $\mathrm{VIII}$ are filled with filled eight electrons which makes these electrons non-reactive.
• They are stable and elements have a low energy state.
• They have elements Helium$\left(\mathrm{He}\right)$, Neon$\left(\mathrm{Ne}\right)$, Argon$\left(\mathrm{Ar}\right)$, Krypton$\left(\mathrm{Kr}\right)$, Xenon$\left(\mathrm{Xe}\right)$, and Radon$\left(\mathrm{Rn}\right)$.
• They are non-reactive so it acts as a shield from reaction with air.
• They do not form chemical bonds so it does not lose or gain electrons.

Characteristics of Group $\mathrm{VIII}$ elements:

• These elements have low melting and boiling point.
• They are used as cryogenic refrigerants.
• They are used in medicine and Helium is used as an anaesthetic.
• Argon is used as an incandescent lamp that prevents tungsten from oxidizing.
• Helium is used as breathing gas by deep divers.