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.
1 When the third energy level has 8 electrons, the next 2 electrons go into the fourth energy level. 2  The electrons in the energy level farthest from the nucleus are called valence electrons. 3  Atoms in the same column (group) in the periodic table have the same number of valence electrons.