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Uses of some noble gases.

Answer Text:
Uses of some noble gases.
Note: The application of noble gases is ironically centered on their inert nature.
1. Argon is used in light bulbs to provide an inert environment to prevent oxidation.
2. Argon is used as an insulator in arch-welding.
3. Neon gas is used in streets and advertisement lights.
4. Helium mixed with oxygen is used in deep sea diving and mountaineering.
5. Helium mixed with oxygen also is used in hospitals for breathing in patients with respiratory problems and those undergoing certain forms of surgery.
6. Helium can be used instead of hydrogen in balloons for meteorological research.
Reason:
- Hydrogen is explosive I presence of air and may explode causing serious accidents.
- Helium is less dense than hydrogen.
7. Helium is used in thermometers for measurements f very low temperatures.
8. Liquid helium is used to keep certain metal alloys at temperatures low enough for them to become superconductors.