He-4

The Element Helium

The element that I chose was Helium. The Element symbol of Helium is He. The Atomic number of helium is 2 and the Atomic mass of Helium is 4. The classification of Helium is a Noble gas. A Noble gas has the maximum number of electrons possible in their outer shell (2 for Helium, 8 for all others), making them stable. The density of Helium is 0.1785 g/cm cubed which means that Helium floats in. The atomic structure for Helium is 2 protons, 2nuetrons, and 2 electrons. The 2 Electrons are placed in the first shell. The uses of Helium are balloons and deep sea diving. The one who discovered this awesome element was Sir William Ramsay.

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