![]() ![]() To minimize the charges, convert lone pair of electrons present on oxygen atoms to bonds. To draw the stable lewis structure, the charges on atoms should be minimized therefore the above structure is not stable. Step 6– Check the stability of the lewis structure and minimize the charges on the atoms The charges should be placed in such a way that summation of charges on each atom should be equal to zero as N2O4 is a neutral molecule. According to the octet rule, each oxygen atom will keep 3 electron pairs. Now, only 12 electron pairs are remaining to draw the rest of the structure of N2O4.ĭraw the remaining 12 electron pairs on oxygen atoms as lone pairs. So, 5 electron pairs (4 + 1 electron pair) are accounted for 4 N-O bonds and 1 N-N bond respectively. Step 4– Place the lone pair of electrons on atoms after drawing the molecular structureĪccording to the above structure, already there are 4 N-O bonds and 1 N-N bond present. ![]() There are two nitrogen atoms present in the N2O4 molecule, so the basic structure of N2O4 will be. The least most electronegative atom will be selected as the center atom therefore, in this case, the nitrogen atom is the center atom. Step 3 – Select the center atom among the atoms present in a molecule = σ bonds + π bonds + lone pair of electrons Total number of electron pairs = Total no. of valence electron present in 4 oxygen atoms of valence electron present in 2 nitrogenĪtoms + No. Total number of valence electrons present in N2O4 molecule = No. Step 2– Find the total number of valence electrons present in a molecule Total number of valence electron in 4 oxygen atoms- 6 * 4 = 24 electrons. Total number of valence electron in 2 nitrogen atoms- 5 * 2 = 10 electrons. There are 5 valence electrons present in the outermost shell of the nitrogen atom and in oxygen atoms there are 6 valence electrons present. Step 1– Determine the total number of valence electron present in each atom of the moleculeĪccording to the molecular formula, there are two nitrogen atoms and four oxygen atoms are present in the N2O4 molecule. Check the stability of the lewis structure and minimize the charges on the atoms.īy following these steps, the lewis structure of N2O4 can be drawn as.Place the lone pair of electrons on atoms after drawing the molecular structure.Select the center atom among the atoms present in a molecule. ![]()
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