Helium and Neon are both gases that are found in the periodic table of elements. Helium is a noble gas with the atomic number 2, while Neon has an atomic number of 10. Both gases are colorless, odorless, and non-toxic. Helium is the second most abundant element in the universe, while Neon is the fifth most abundant element. Both gases are used in a variety of applications, such as in lighting, welding, and cryogenics.