4/11/2016. There's no way I would ever rate a box store 5 stars, but I do like our Home Depot. The service isn't always the greatest, but it's usually pretty decent. The have a wide selection and the prices are generally the best in town.
Electrons with the highest energy levels exist in the outermost shell of an atom and are relatively loosely bound to the atom. This outermost shell is known as the valance shell and electrons in this shell are called valance electrons. A completed outermost shell has valance of zero.
Best Answer: What it means is that there is one electron in the atom that is elevated to an energy level above the ground state. In H that would be it got kicked up to 2s or 6p THe electron in the elevated state is prone to fall back to its ground state, giving up the energy.