im not sure but i think thats because its only made up of one thing. its in the Periodic Table
It is a element
Helium is an element. It is a noble gas. It is in the 18th period.
Helium is a gas, except at extremely cold temperatures.
Helium is an element
Yes for sure, but in the very small amount, the composition of air is approximately : 78.08 % Nitrogen 20.94 % Oxygen 00.93 % Argon 00.03 % Carbon Dioxide which is equal to 99.98 percent the rest of the air is compose of Neon Helium Krypton Sulfur dioxide Methane Hydrogen Nitrous Oxide Xenon Ozone Nitrogen dioxide Iodine Carbon monoxide Ammonia In which Helium's composition is 5.2 parts per million.
It is a element
Helium is an element and not a compound or mixture.
It is a element
Helium is an element.
Neither. Helium is an element
It is a element
Helium is an element. It is in the 18th group of the periodic table. It is a noble gas.
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 a gas, except at extremely cold temperatures.
Helium is an element not a mixture.
Helium is not a compound, it is an element.