This largely depends on the amount drank. Hellium is non poisonous but can cause asphyxiation.
A very small amount would do little to a human except freeze the first layer(s) of the mouth/esophagus. Also, liquefied gasses expand greatly as the re-vaporize. There is a slight chance for a sudden pressure change to occur. (more then likely you would have to burp loudly)
For more that a little bit:
Everything from extreme frost bite to death could occur. Each of the problems listed above would be magnified. If, by chance, you could get the liquid to the stomach before it vaporized the sudden increase in pressure would rupture the stomach. This would not be you primary concern. The muscles of the esophagus would probably freeze before a large amount could actually be swallowed.
the lighted splint would stop burning as Helium does not burn.
No ATP generation, thus, no energy --> death :(
The Helium gas will expand and rise into the suurounding the air as it is less dense and lighter air. Depending on the amount of helium and the size of the room the Helium could displace the breathable mix in the space and become a danger to health.
A gram atomic mass of helium (He) contains the same number of atoms as 1 mole of helium. Since 1 mole of any substance contains approximately 6.022 x 10^23 atoms, a sample of helium with a gram atomic mass would contain that same number of atoms.
It would by definition be Helium (atom number = number of protons = 2) but the nucleus of the stable isotope 4He also contains 2 neutrons (the mass number = total number of p's and n's = 4)
The helium, being lighter than air, would simply rise out of the jar.
That would happen after it loses a certain amount of helium.
If the lid of a jar containing helium gas is removed, the helium gas will quickly diffuse out of the jar and into the surrounding environment because helium gas is lighter than air. Helium is also non-toxic and non-flammable, so it will not pose any immediate danger.
the lighted splint would stop burning as Helium does not burn.
it would be cray.
Helium is chemically inert and does not combine with any other element (including thallium).
The reaction in the sun which gives us energy involves helium. If helium didn't exist we would receive no energy and life wouldn't exist on the earth.
If James is holding that much helium, he would be talking funny
If you pour liquid helium into liquid nitrogen, the helium will not mix with the nitrogen and will instead form separate layers. Helium is lighter than nitrogen and has a lower boiling point, so the helium will tend to float on top of the nitrogen.
None, for it to be an atom it has the have the same number of electrons and protons. Something with 1 electron and 2 protons would theoretically be a helium ion but helium does not form ions.
the air would come out
H plus ions would not flow