The elements in Group 0 are:
|Chemical Name||Chemical Symbol||Atomic Number|
What are the Properties of Noble Gases?
We know that atoms react with each other to gain full outer shells of electrons. Since the atoms of noble gases have full shells already, they have no need to react. The full shells make them stable.What are the uses of the noble gases?
The noble gases glow when a current is passed through them at low pressure. Since the noble gases are unreactive or inert, they are safe to use.
Helium is used to fill balloons and airships, because it is much lighter that air and it will not catch fire.
Argon is used to provide an inert atmosphere. For example it is used as a filler in tungsten light bulbs (we do not use air because the oxygen would make the tungsten filament burn away). We can also use it in argon lights (see the video below)
Neon is used in advertising signs. It will give red glow, but the color can be changes by mixing it with other gases.
Krypton is used in lasers and in car headlamps.
Xenon gives a bright light that looks like daylight. It is used in hospital operating theaters and car headlamps.Helium
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