Electron Configuration Chart Order. Electron configurations describe where electrons are located around the nucleus of an atom. Therefore, the electron configuration of oxygen is 1s 2 2s 2 2p 4, as shown in the illustration provided below.
Lines to determine order of orbitals to fill. The orbital filling chart determines the order that principal and sublevels are filled. There are 118 elements in the periodic table.
Add two electrons to each s sublevel, 6 to each p sublevel, 10 to each d sublevel, and 14 to each f.
Therefore, the electron configuration of oxygen is 1s 2 2s 2 2p 4, as shown in the illustration provided below. These are the numbers that students' in. Hydrogen and helium are placed somewhat arbitrarily. An electron configuration can quickly and simply tell a reader how many electron orbitals an atom has as well as the number of electrons populating each of its orbitals.
