A common use of helium1 is to fill party balloons.
Balloon image Belchonock, 123RF Ltd
Helium is a chemical element. Its official symbol is He, and its atomic number is 2, which means it has two protons in its nucleus. Helium was named after Helios – the Greek Titan of the Sun – ...
(He) A colourless, odourless inert gaseous element occurring in natural gas and with radioactive ores.
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