The one side of each oxygen atom is written, with a maximum of two electrons (so, two dots). The Lewis structure is formed considering the eight electrons comprising the octet rule. To study the geometrical structure of O2, it is important to look at the electronic structure of a single oxygen atom first. In total, an O2 molecule needs four valence electrons to complete its octet and achieve a stable condition. If we look for O2, then the number will be O2: 6+6 = 12. So, a single oxygen molecule has six electrons in its octet. The octet rule says that the elements bond in such a manner that they tend to achieve a maximum of eight electrons in their outermost shell or the valence shell.Īs we studied above that one oxygen atom has a deficiency of two valence electrons, it readily accepts two electrons. It concludes to the fact that oxygen needs two electrons to achieve a stable condition. The atomic number of one oxygen atom is eight where its electronic configuration shows a deficiency of 2 electrons in the 2p shell. The analysis of the number of valence electrons present in one oxygen (O) molecule is done with the help of the electronic configuration. How many valence electrons/lone pair of electrons are in O2? The valence electrons either get accepted or donated to form a strong bond, usually which is covalent in most of the cases. This bond formation further leads to the formation of a molecule and eventually a compound. The valence electrons are present in the outermost shell of an atom which participates in a bond formation. These eight electrons present in the outermost shell are drawn and counted during the lewis structure. It gives a similar electronic configuration as that of a noble gas. Some elements of the periodic table tend to bond in such a manner that each atom has to have eight electrons in the outermost shell or the valence shell. These four valence electrons form two shared pairs of covalent bonds, providing a stable structure to the oxygen molecule. Where six are arranged, around each oxygen atom in a way that one side has four valence electrons. The Lewis diagram of O2 shows two oxygen atoms having twelve dots, of valence electrons. The Lewis structure helps with understanding how electrons are distributed within a compound along with its molecular geometry.īesides this, the lewis structure helps with determining the hybridization of the molecule. This diagram shows bonds with the help of lines and lone pairs of electrons as dots. Lewis structure is a diagrammatic representation of showing the bond formation between the atoms of molecules.įurthermore, this structure also helps with determining the lone electrons existing within the molecule and how they will be acting in a bond formation. Conclusion Significance of Lewis structure
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