Complete Ground State Electron Configuration for the Oxygen Atom
Oxygen History
The element Oxygen was discovered by Carl Wilhelm Scheele in year 1774 in Sweden and United Kingdom . Oxygen derived its name from the Greek word oxy-, both 'sharp' and 'acid', and -gen, meaning 'acid-forming'
Oxygen Presence: Abundance in Nature and Around Us
The table below shows the abundance of Oxygen in Universe, Sun, Meteorites, Earth's Crust, Oceans and Human Body.
| Ppb by weight (1ppb =10^-7 %) | |
|---|---|
| Abundance in Universe | 0.01 |
| Abundance in Sun | 0.009 |
| Abundance in Meteorites | 0.4 |
| Abundance in Earth's Crust | 0.46 |
| Abundance in Oceans | 0.86 |
| Abundance in Humans | 0.61 |
Crystal Structure of Oxygen
The solid state structure of Oxygen is Base Centered Monoclinic.
The Crystal structure can be described in terms of its unit Cell. The unit Cells repeats itself in three dimensional space to form the structure.
Unit Cell Parameters
The unit cell is represented in terms of its lattice parameters, which are the lengths of the cell edges Lattice Constants (a, b and c)
| a | b | c |
|---|---|---|
| 540.3 | 342.9 | 508.6 pm |
and the angles between them Lattice Angles (alpha, beta and gamma).
| alpha | beta | gamma |
|---|---|---|
| π/2 | 2.313085 | π/2 |
The positions of the atoms inside the unit cell are described by the set of atomic positions ( xi, yi, zi) measured from a reference lattice point.
The symmetry properties of the crystal are described by the concept of space groups. All possible symmetric arrangements of particles in three-dimensional space are described by the 230 space groups (219 distinct types, or 230 if chiral copies are considered distinct.
Oxygen Atomic and Orbital Properties
Oxygen atoms have 8 electrons and the electronic shell structure is [2, 6] with Atomic Term Symbol (Quantum Numbers) 3P2.
Shell Structure of Oxygen - Electrons per energy level
Ground State Electronic Configuration of Oxygen - neutral Oxygen atom
The ground state electronic configuration of Neutral Oxygen atom is [He] 2s2 2p4. The portion of Oxygen configuration that is equivalent to the noble gas of the preceding period, is abbreviated as [He]. For atoms with many electrons, this notation can become lengthy and so an abbreviated notation is used.This is important as it is the Valence electrons 2s2 2p4, electrons in the outermost shell that determine the chemical properties of the element.
Unabbreviated electronic configuration of neutral Oxygen
Complete ground state electronic configuration for the Oxygen atom, Unabbreviated electronic configuration
1s2 2s2 2p4
Atomic Structure of Oxygen
Oxygen atomic radius is 48 pm, while it's covalent radius is 73 pm.
Atomic Spectrum of Oxygen
Oxygen Chemical Properties: Oxygen Ionization Energies and electron affinity
The electron affinity of Oxygen is 141 kJ/mol
Ionization Energy of Oxygen
Refer to table below for Ionization energies of Oxygen
| Ionization energy number | Enthalpy - kJ/mol |
|---|---|
| 1 | 1313.9 |
| 2 | 3388.3 |
| 3 | 5300.5 |
| 4 | 7469.2 |
| 5 | 10989.5 |
| 6 | 13326.5 |
| 7 | 71330 |
| 8 | 84078 |
Oxygen Physical Properties
Refer to below table for Oxygen Physical Properties
| Density | 1.429 g/l |
| Molar Volume | 11.1962211337 cm3 |
Elastic Properties
Hardness of Oxygen - Tests to Measure of Hardness of Element
Oxygen Electrical Properties
Oxygen is N/A of electricity. Refer to table below for the Electrical properties of Oxygen
Oxygen Heat and Conduction Properties
Oxygen Magnetic Properties
Optical Properties of Oxygen
Acoustic Properties of Oxygen
Oxygen Thermal Properties - Enthalpies and thermodynamics
Refer to table below for Thermal properties of Oxygen
Enthalpies of Oxygen
Oxygen Isotopes - Nuclear Properties of Oxygen
Isotopes of rhodium. Naturally occurring Oxygen has 3 stable isotope - 16O, 17O, 18O.
| Isotope | Isotope Mass | % Abundance | T half | Decay Mode |
|---|---|---|---|---|
| 12O | ||||
| 13O | ||||
| 14O | ||||
| 15O | ||||
| 16O | 99.757% | Stable | N/A | |
| 17O | 0.038% | Stable | N/A | |
| 18O | 0.205% | Stable | N/A | |
| 19O | ||||
| 20O | ||||
| 21O | ||||
| 22O | ||||
| 23O | ||||
| 24O | ||||
| 25O | ||||
| 26O | ||||
| 27O | ||||
| 28O |
Regulatory and Health - Health and Safety Parameters and Guidelines
| CAS Number | CAS7782-44-7 |
| RTECS Number | RTECSRS2060000 |
| DOT Hazard Class | 2.2 |
| DOT Numbers | 1073 |
| EU Number | N/A |
| NFPA Fire Rating | 0 |
| NFPA Hazards | Oxidizing Agent |
| NFPA Health Rating | 3 |
| NFPA Reactivity Rating | 2 |
Database Search
List of unique identifiers to search the element in various chemical registry databases
| Database | Identifier number |
|---|---|
| CAS Number - Chemical Abstracts Service (CAS) | CAS7782-44-7 |
| CID Number | CID977 |
| Gmelin Number | N/A |
| NSC Number | N/A |
| RTECS Number | RTECSRS2060000 |
Complete Ground State Electron Configuration for the Oxygen Atom
Source: https://www.schoolmykids.com/learn/interactive-periodic-table/o-oxygen
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