Well, probably...
Helium is used as it is/pure. Helium is an inert gas and does not form part of compounds.
Helium found in atmosphere will have other gases as impurities. But it can be isolated by suitable method (generally by adsorption of gases) to get pure helium.
Helium is obtained in pure form through the process of cryogenic distillation of natural gas. During this process, natural gas is cooled to extremely low temperatures to separate the helium from other gases present. This allows for the extraction of pure helium for various industrial and scientific applications.
Yes. helium is found in its elemental form. it is chemically inert as it has completely filled orbitals.
Helium is pure as it is on the periodic table.
Helium is a pure substance
Yes, it is a pure substance but can be mixed with other gases.
In atmosphere, helium is found as a mixture along with other gases. But this helium can be isolated and obtained in pure form by suitable techniques.
Neptunium itself is not typically used as neutron detection equipment in its pure form. Neptunium can be used in certain nuclear reactors and for research purposes, but for neutron detection equipment, materials like boron, helium-3, or lithium are more commonly used.
Helium gas is a pure substance
If helium used is pure and if there is no electric discharge, then chemically helium in both the cases will be same.
He stands for helium which is a pure element