hellium is a gas that makes light objects float e.g. balloons
There is no element called "hellium". It seems like you might be referring to helium, which has an atomic number of 2.
Hellium
its hellium (He)
The noble gases
hydrogen and hellium
it is made of hellium gaz
a particle of hellium is small enough to fit in between the molecules of latex (or whatever the balloon is made of) and eventually leaks out due to diffusion. If the environment the balloon is in has the same amount of hellium in it as the balloon, it won't deflate.
hellium
4
No. Helium does not burn.
Hellium
There is no element called "hellium". It seems like you might be referring to helium, which has an atomic number of 2.
Hellium
its hellium (He)
It is a gas.
Helium has 2 protons.
it is a compound