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 idea here is that you need to use neon's molar mass, which tells you what the mass of one mole of the element is, to determine how many moles you have in that #5.9-g# sample. Once you know how many moles you have, you can use Avogadro's number to find the number of atoms. So, neon has a molar mass of #20.18 g/mol#, which means that every mole of neon has a mass of #20.18 g#. Your sample of neon will thus contain