Elements emit colours when heated because electrons in atoms can have only certain allowed energies.Heating an atom excites its electrons and they jump to higher energy levels. When the electrons return to lower energy levels, they emit energy in the form of light. Every element has a different number of electrons and a different set of energy levels. Thus, each element emits its own set of colours. See, for example, mercury and neon above. Those colours are as distinctive to each element as fingerprints are to people.
<span>The
sellers may want to get rid of the
product because it may be taking up space in inventory so they will sell
it for less, this will affect consumer perceptions because there will be more
people with the product which will allow more people to see the product.</span>
Supply and demand! The prices will rise until the supply will reach the demand.
