Helium has 2 protons.
4
Helium is the element with 2 electrons. It has an atomic number of 2, indicating the number of protons and electrons in its nucleus.
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
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 is a gas that makes light objects float e.g. balloons
Hellium
its hellium (He)
It is a gas.
it is made of hellium gaz