Electron Configuration Like in every other element apart from Hydrogen, in Oxygen's first electron shell, there are two electrons, filling it to the maximum limit. Electron Configuration: 1s 2 2s 2 p 4; Electrons per Energy Level: 2,6 Shell Model; Ionic Radius: 1.4Å; Filling Orbital: 2p 4; Number of Electrons (with no charge): 8; Number of Neutrons (most common/stable nuclide): 8; Number of Protons: 8; Oxidation States:-2,-1; Valence Electrons: 2s 2 p 4 Electron Dot Model. The other members of group 8 have a characteristic valence shell electron octet (ns 2 + np … To determine valence electrons, add the outermost s and p orbitals. The electronic configuration of oxygen is- 1s^2 2s^2 2p^4 Note:- For writing the electronic configuration of elements, the Aufbau Principle is used. Atomic number of oxygen is 8, so it has total 8 electrons. Electron present in the first shell (n=1) 2n^2=2(1)^2=2(1)=2 The chemical properties of the elements reflect their electron configurations. Chemical Properties of Oxygen … iodine The electron configuration of oxygen is 1s 2 2s 2 2p 4, and its electron-dot structure is . For example, helium, neon and argon are exceptionally stable and unreactive monoatomic gases. Oxygen Electronic configuration. Each element has a unique atomic structure that is influenced by its electronic configuration, which is the distribution of electrons across different orbitals of an atom. If we look at the element after Nitrogen in the same period, Oxygen (Z = 8) its electron configuration is: 1s 2 2s 2 2p 4 (for an atom). In writing the electron configuration for oxygen the first two electrons will go in the 1s orbital. Electron configuration of Oxygen … Its electrons are filled in the following order: K shell – 2 electrons. L shell – 6 electrons. Electronic configuration: 1s 2 2s 2 2p 4 >> Back to key information about the elementBack to key information about the element Since 1s can only hold two electrons the next 2 electrons for O … Helium is unique since its valence shell consists of a single s-orbital. In an oxygen atom, 8 electrons are present. The atomic number of oxygen is 8, implying that an oxygen atom holds 8 electrons. Electron Configuration Chart for All Elements in the Periodic Table. In Aufbau Principle, the electrons are filled according to the increasing energy level of orbitals. The Aufbau Process. Therefore, the electron configuration of oxygen is 1s 2 2s 2 2p 4, as shown in the illustration provided below. In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule in atomic or molecular orbitals. There are 118 elements in the periodic table. The electron configuration of the chemical element describes the ground state, i.e. Oxygen has 6 valence electrons, because it’s electron configuration is 1 s^ 2 2 s^ 2 2 p^ 4. Electron Configuration of Oxygen. Oxygen has one more electron than Nitrogen and as the orbitals are all half filled the electron must pair up. When the atom is in excited state, one or more electrons go to a higher energy state, so electron configuration of the excited atom is different. the Next electron shell, which for Oxygen is the valence shell, there are six valence electrons, not filling it completely, due to needing two more. the state in which all electrons have the lowest possible energy. According to the Aufbau Principle, first the atomic number of element is determined (like here oxygen … 2p4 Electron Configuration of Oxygen.