Archery as a sport or a way of Defense has existed for centuries. At rest, there is absolutely not any strain on the bowstring and no force on the arrow. After the arrow and string are pulled back, we now have a situation where kinetic energy pulling of the series has been converted into potential energy the tension on the string. The archer releases the arrow and the potential energy is translated into kinetic energy as the arrow goes. It turns out that electrons behave the same way when energy is put into the system or discharged from the system. The electrons in an atom have a tendency to be arranged in such a manner that the energy of the atom is as low as you can. The ground state of an atom is the lowest energy state of the atom. When those atoms are given energy, the electrons absorb the energy and move to a higher energy level.
These energy levels of the electrons in atoms are quantized, meaning that the electron must move from one energy level to another in different steps, as opposed to continuously. An excited state of an atom is a state where its potential energy is greater than the ground state. An atom in the excited state isn’t stable. If it returns back to the ground state, it releases the energy which it had previously gained in the kind of electromagnetic radiation. Method is to pass an electrical current through an enclosed sample of a gas at low pressure. Since the electron energy levels are unique for every component, each gas discharge tube will glow with a distinguishing color based upon the identity of the gas see below. Neon signals are recognizable examples of gas discharge tubes. However, only signs that glow with the red-orange color seen in the figure are in fact full of neon. Indications of other colors contain various gases or mixtures of gases.
Scientists analysed the distinctive pink colour of the gas release made by hydrogen gas. When a narrow beam of the light was seen through a prism, the light was split into four lines of very specific wavelengths and frequencies because λλ and νν are inversely related. An atomic emission spectrum is the pattern of lines formed when light passes through a prism to split it in different frequencies of light it contains. The figure below shows the atomic absorption spectroscopy. Classical theory Was not able to explain the occurrence of atomic emission spectra, also called line-emission spectra. According to classical physics, a ground state atom would have the ability to absorb any quantity of energy as opposed to only discrete amounts. Likewise, once the atoms rested back to a lower energy state, any quantity of energy could be released.