Question

Helium is preferred to hydrogen in air balloons because it

Answer 1

HELLO THERE!

Helium (He) is lighter than air. Hydrogen (H₂) is even lighter than that (it is the lightest known gas). Still, Helium is preferred to Hydrogen in air balloons.

Reason: Helium is a noble (inert gas). It has a complete duplet (outer shell configuration, its configuration is 1s²). This means that it does not react with anything. Hence, it does not catch fire.

However, Hydrogen has only one electron it its valence shell, and it can either lose it or gain another electron, hence it is reactive than Helium. Due to this reason, it can catch fire as the balloon rises up the atmosphere.

THIS IS WHY HYDROGEN IS NOT PREFERRED IN AN AIR BALLOON. HELIUM IS PREFERRED TO HYDROGEN. IT IS LIGHTER THAN AIR, SO IT LETS THE BALLOON RISE UP, AND IT IS ALSO INERT.

Hope my answer is satisfactory...

Thanks!

Answer 2

Answer:

ʏᴏᴜʀ ᴀɴsᴡᴇʀ ɪs ᴛʜᴇ ᴀᴛᴛᴀᴄʜᴍᴇɴᴛ