16 апр. 2018 г. · Helium is a pure substance. Most commonly, helium gas is a mixture of 2 different forms of helium (isotopes). So in that sense it's not “pure”. Is helium an element, mixture or a compound? - Quora Is gas inside a helium balloon a compound or an element? Is the oxygen and helium in a scuba tank a pure substance? Is methane a pure substance or a mixture? - Quora Другие результаты с сайта www.quora.com

Helium is element number 2 on the periodic table, which should inform you that it is, of course, an element. Note: Pure substances and mixes are the two types ...

9 янв. 2020 г. · An element is a pure substance as well because if we fill up a balloon with just helium gas, it will only contain helium atoms.

Helium is a pure element and a pure substance because an element is a pure substance and not a mixture (not formed by mixing of two or more substances).

9 янв. 2020 г. · An element is a pure substance as well, because if we fill up a balloon with just helium gas, it will only contain helium atoms.

Helium gas is a PURE SUBSTANCE because is only contains a single element in its composition. Help improve Study.com.

The final answer is that helium is a pure substance.

1 нояб. 2023 г. · Helium gas: This is a chemically pure substance that cannot be broken down into other substances, hence it is an element. Clean air: This is a ...

23 мая 2018 г. · Element An element is a pure substance as well, because if we fill up a balloon with just helium gas, it will only contain helium atoms.