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16Ne, 17Ne, 18Ne, 19Ne, 20Ne, 21Ne, 22Ne, 23Ne, 24Ne, 25Ne, 26Ne, 27Ne, 28Ne, 29Ne, 30Ne, 31Ne, 32Ne, 33Ne, 34Ne are the known isotopes whereas 20Ne, 21Ne, 22Ne are the most stable ones.
neon red, orange, amber, pink,peach,salmon,green,aquamariene,turquois,sky blue,clear blue, 3500 white 4500white and 6500 white If you are talking about the element neon than the only color it comes in is a redish-orange. Even though some signs are called neon signs the only time they actually have neon in them is when they are redish-orange; they use other elements for the other colors.
16Ne, 17Ne, 18Ne, 19Ne, 20Ne, 21Ne, 22Ne, 23Ne, 24Ne, 25Ne, 26Ne, 27Ne, 28Ne, 29Ne, 30Ne, 31Ne, 32Ne, 33Ne, 34Ne are the known isotopes of neon whereas 20Ne, 21Ne, 22Ne are the stable isotopes of neon