Chemistry
Grade-9
Easy
Question
They float due to the helium's inert properties.
- Ar
- Ne
- He
- Xe
Hint:
Helium is the lightest of all gases.
The correct answer is: He
- Helium is lighter than oxygen or carbon dioxide.
- Helium is least dense and it floats.
- Helium floats through buoyancy above other denser gases.
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