General Knowledge - General Science - Discussion

Why another gases are not used in bulb?

Because it is very least reactive gas.

We generally use inert gase.

Filament is made of nicrome and inert gas will not react with this.

But actually argon gas is used in bulb.

An inert gas is used.

I also think that argon is used to fill the bulb

Other than nitrogen which gases are used.

Oygen is not used because it burns the filament in the bulb, made of mercury so except oxygen we can use other gases but commonly inert gases are used to fill the bulbs.

We do not use hydrogen because hydrogen is very inflammable gas and it caches fire immediately when is in the contact with a little spark.

We do not use oxygen gas because this gas is responsible for the combustion process and it helps the fire to burn more.so,we can't use oxygen gas.

Now carbon dioxide gas is not used in bulbs because carbon dioxide gas is not helpful for combustion of fire.

Now nitrogen gas is used in bulbs because when we see in periodic table nitrogen gas is on 7th no. so, it's atomic no. is seven. if we write the electronic configuration of nitrogen we see that his outer orbital is half filled and it,s more stable than other gases that are given in the options. this nitrogen gas molecules glow and emit radiations when current passes through it.