![]() ![]() We are aware of the concept of atomic orbitals, the mathematical probability functions indicating the presence of electrons in any regional space. The bond length is around 1.20 Å.ĭo you know that an electron can be described with the help of its wave function? Therefore, the bond angle of NO2 is around 134 degrees. There we also have a bent structure but since repulsion strength is of the order of LP-LP > LP-BP > BP-BP, the bond angle order is as below If we look at the nitrite ion NO2-, we have 2 Bond Pairs and 1 Lone pair of electrons. In NO2, we have 2 Bond Pairs and 1 lone electron. We can see that NO2 has a bent molecular geometry and the angle is around 120 degrees.īut here we have some exceptions. Here, since we have just one lone electron, Let us take it as 1. N stands for the number of atoms around the central element, we have the value of 2.Į stands for non-bonded electrons ( usually a lone pair), x stands for the number. X stands for the surrounding atoms, here we have two O atoms. In the VSEPR model, we have the AXnEx notation.Ī stands for the central atom, here we have nitrogen ( N ). VSEPR thus helps in predicting the 3D molecular geometry or shape of a molecule along with the bond angles. So, this repulsion force needs to be minimized to form a stable or balanced polyatomic molecular or ionic structure. ![]() VSEPR stands for Valence Shell Electron Pair Repulsion model.Īccording to this theory, since electrons carry like charges ( ‘-’ ), they are bound to experience repulsion and this strength of repulsion varies across bonded and lone pair electrons. This is where the role of VSEPR theory comes:
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