No. Hydrogen and helium are separate elements. Elements do not contain other elements.
But an element can give off or take electron from other elements.
All stars contain hydrogen and helium.
hydrogen.
The propellant used in hair spay does not contain hydrogen gas or helium gas. Hairspray contains compounds that contain covalently bonded hydrogen.
hydrogen.
A hot air balloon doesn't contain helium or hydrogen.
helium or oxygen depending on what you put in them
Hydrogen and Helium
Sun contain hydrogen and helium.
It contains mostly hydrogen and helium.
Stars contain hydrogen, helium and a little iron.
More helium, less hydrogen.
Hydrogen and helium, the most common elements in the Universe.Hydrogen and helium, the most common elements in the Universe.Hydrogen and helium, the most common elements in the Universe.Hydrogen and helium, the most common elements in the Universe.