Question

what is helium give some examples of helium​

Answer 1

Helium is a gases lighter than air (O2).

It has atomic no. 2 and mass no. 4.

It is used in balloons so that they can float in air due to its weight lighter than air.

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Answer 2

Answer:

Helium (He), is a chemical element, inert gas of Group 18 (noble gases) of the periodic table. The second lightest element (only hydrogen is lighter than it), It is a colourless, odourless, and tasteless gas that becomes liquid at −268.9 °C (−452 °F).

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