Talk to a physician with experience treating facet joint pain to learn which of these options may be right for you: 1  Medication. 2  Physical Therapy. 3  Facet Joint Injections. 4  Nerve Ablation. 5  Facet Restoration.
Each energy level is labeled with the quantum number n (n=1, 2, 3,...) and the energy of a particular level can be determined by the following: En=-Rh (1/n^2). This is where Rh is the Rydberg constant of the element. For the simplest atom, the hydrogen atom, Rh=2.18*10^-18 J.
At a ground state, argon has three energy levels. For future reference, just count the number of horizontal rows (also named periods) an element is from the top of the periodic table. At a ground state, argon has three energy levels.