Helium is an element.
Helium is an element.
No. Helium is not an compound, it is a element.
Helium is not a compound, it is an element.
Helium is an element.
Helium is not a compound, it is an element.
It is a element
No, it is an element.
Helium is an element.
Helium is an element and not a compound or mixture.
No. Helium is element, not a compound.
element
Helium is an element. It is a noble gas. It is in the 18th period.