Helium

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Helium is a chemical element. It's atomic number (number of protons) is 2. It has a Standard Atomic Weight of 4.002602(2), and is typically found as a Gas in it's elemental form. Helium is considered to be a Noble gas and has a boiling point of -268.93 °C

, and a melting point of -272.2 °C.

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