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.
The atomic mass unit is defined as: A) the mass of the hydrogen atom containing only one proton. B) the mass of electrons found in a carbon atom containing six protons and neutrons. C) 1/12 the mass of a carbon atom containing six protons and six neutrons. D) 1/14 the mass of a nitrogen atom containing 7 protons and 7 neutrons. E) none of the above