Helium HE
Density: 0.1786g/l
Melting Point: 0.95k
Boiling Point: 4.22k
Phase: Gas
Backround
Helium consist of 2 protons, 2 neutrons and 2 electrons. It is the only member in the noble gas family in group 18 that can't be made into a solid by lowering it's temperature, and has the lowest boling point of any element. Pierre Jansen studied light from the sun during a solar eclipse, and he found proof that a new element in the sun exsisted called Helium in 1868.
Uses for Helium
We can use Helium for filling up balloons and blimps. We can also use Helium in lead detection, neon signs and also to protect objest from reacting with oxygen.
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