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