I know that any time energy is generated, you can use the equation in the form of E = mc^2. Also, that energy becoming matter can be described as m = E/(c^2). But, going as those are, is it also assumable that you could say c^2 = m/E? In other words, would the speed of light in a perfect vacuum represent all the ratios of mass to energy that each element can exist, up to a certain point in natural occurrence? What I mean is, we have stable points at which an element is represented on the periodic table. So if the equation holds, and mass isn't being converted to energy or visa-versa, wouldn't this form of the equation represent its resting state, or in other words, each element's stable state? I was just wondering, because I haven't seen anybody talk about it much or relate to the equation in that way..