Question

Why helium is left alone

Answer 1

Hey!!

Helium is left alone because is a stable element.

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Answer 2

HEY THERE...
HERE IS YOUR ANSWER...
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☜☆☞ Helium goes into a lot more than balloons. Because the gas is inert and has extreme melting and boiling points—both near absolute zero—scientists use it in cryogenics, high-energy accelerators, arc welding, and silicon wafer manufacturing. A severe reduction in the availability of helium could force hospitals to replace costly MRI magnets or restrict patient access to them.
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