Helium is often used in observation balloons because it is?

Havilah10

2 months ago

Hélium is a noble gas and noble gases are inert i.e they do not react or take part in chemical reactions meaning it is non combustible

It is relatively light than air just like hydrogen but hydrogen is combustible
This will help

Son1

2 years ago

B is correct

bolade07

2 months ago

Hlium is light and non-combustible that is why its can be used in obsrevation ballons