Ahilyum (s tnglizt : Helium) iga t ufrḍis akimi lli mu gan tasdugmt n He d uṭṭun afrḍas 2. Ur dar-s akʷlu, aḍu d tamimt, ur igi toxic, iga ulmig (inert), ar ittga agaz n yan ufrḍis (monoatomic gaz), d iga amzwaru ɣ trabut n igazn usmidn (the noble gas) ɣ taflwit tazdawant n ifrḍisn.

Ahilyum iga wissin ifrḍisn ɣ tfssi d tugt ɣ umaḍal (Ahidrujin ad igan amzwaru ɣ tfssi d tugt), iga 24% n tmtta, d unck mqqurn gis ittuskar s nuclear fusion n uhidrujin ɣ itran.[1]

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