Describe how electrons move within an atom.

Atoms are made up of three major components: electrons, protons and neutrons. Protons and neutrons make up the nucleus in the center of the atom. ... If you add energy, electrons can move to a higher orbital level and then back again when the energy returns to normal.

Explanation:

petroleum? coal maybe?

the reaction mixture contains some ammonia, plus a lot of unreacted nitrogen and hydrogen. the mixture is cooled and compressed, causing the ammonia gas to condense into a liquid. the liquefied ammonia is separated and removed. the unreacted nitrogen and hydrogen are then recycled back into the reactor .