active transport requires the usage of energy in the form of ATP to  move something against is concentration gradient. Facilitated  diffusion is a form of simple diffusion i â¦ n that the substance moves  along with its concentration gradient, but it requires the use of a  transport protein.
Quick Answer. The atomic mass of the element neon is 20.18 amu, or atomic mass units. This number, which appears on the periodic table underneath the chemical symbol for neon, Ne, represents the weighted average of the isotopic masses of neon's isotopes based on their abundance in nature. Continue Reading.
Neon Facts. Neon (Ne) is a colorless, non-metallic, very inert gas with an atomic number of ten. This member of the noble gas classification glows reddish orange in a vacuum tube. Interesting Neon Facts: While experimenting on liquid air, Sir William Ramsay and Morris Travers discovered neon in 1898.