How can helium be considered as a non-metal based on its chemical properties? Helium is a noble gas; it does not take part in chemical reactions under ordinary conditions. But non-metals tend to gain electrons to form negative ions. Also, there are many chemical properties that helium does not show as a non-metal. Then how can be helium considered as a non-metal by looking at is chemical properties?

  • 1
    $\begingroup$ On chemical properties helium is like a noble gas not a metal. It is chemically unreactive like noble gases but unlike metals; it is not electrically conductive even as a solid, unlike metals. Exactly which properties are metal like and not noble gas like? $\endgroup$ – matt_black Dec 29 '18 at 21:25
  • $\begingroup$ en.wikipedia.org/wiki/Metal $\endgroup$ – aventurin Dec 30 '18 at 10:56
  • Metal atoms share electrons.
  • Non-metals don't.
  • Helium atoms do not share electrons. QED (this ain't quantum electrodynamics).

Of course, there are semimetals, but again, He doesn't qualify, so it's not germane to the answer.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.