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 is the second noble gas located in column 18 of the period table. Neon is the fifth most abundant element in the universe. Neon atoms have 10 electrons and 10 protons with a full outer shell of 8 electrons. Characteristics and Properties. Under standard conditions the element neon is a colorless odorless gas.