Question

Give two examples of Monoatomic elements

Answer 1

1. Monatomic is a combination of two words “mono” and “atomic” which means a single atom
2. Monoatomic molecules are those molecules that are composed of only one atom
3. The noble gases are monatomic gases as they are unreactive in nature.
4. Examples are:

• Helium $\left(\mathrm{He}\right)$
• Neon $\left(\mathrm{Ne}\right)$
• Argon $\left(\mathrm{Ar}\right)$
• Krypton $\left(\mathrm{Kr}\right)$