Neither. Helium is an element
Neither. Helium is a noble gas mono atomic element.
Helium is an element. It is a noble gas. It is in the 18th period.
Helium is an element. It is in the 18th group of the periodic table. It is a noble gas.
Helium is a gas, except at extremely cold temperatures.
Helium is an element and not a compound or mixture.
It is a element
Helium gas is a pure substance
Helium gas is a pure substance
It is a nonmetal, noble gas.
Helium is not a compound, it is an element.
Helium is an element.
It is a element