Question

what is helium gas?​

Answer 1

Answer:

helium gas is a noble gas

it is the 2nd lightest element

it is used in hot air balloons

its configuration is 2 i.e its valence shell is full

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Explanation:

Answer 2

hi mate,

• Helium gas is used to inflate blimps, scientific balloons and party balloons.
• It is used as an inert shield for arc welding, to pressurize the fuel tanks of liquid fueled rockets and in supersonic windtunnels.
• Helium has many unique properties: low boiling point, low density, low solubility, high thermal conductivity and inertness, so it is use for any application which can explioit these properties.
• Helium was the first gas used for filling balloons and dirigibles.

i hope it helps you..