Hellen Helium

Facts About Me

My symbol is He, I have a atomic mass of 4. My atomic number is 2. I have 2 protons, 2 neutrons, 2 electrons . My melting point is -272 °c. The boiling point is -268°c. In room temp. I'm a gas. I'm classified as a nonmetal. Helium has the lowest boiling point and melting point of the elements. I was discovered by Sir William Ramsey, in 1895.

Helium facts

Helium is nontoxic and nonflammable . Helium is colorless and tasteless. It is one of the most common elements in the universe. Human voices can change for a little bit by in hailing helium. Helium can be used for medical purposes:

*breathing observations

* used to treat lung diseases

* hospital MRI scans rely on it to cool down magnets

Helium dating is relied on to date rocks with uranium and titanium in it. Helium is the 2nd lightest and 2nd most abundant in the universe. In 1928 helium became available in the open market.