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2E. 18

Posted: Sat Nov 24, 2018 10:32 pm
by Maggie Doan 1I
d) Draw the lewis structure, VESPR formula, molecular shape, and bond angles: N2O
Why doesn't the lewis structure for N2O have a lone pair?

Re: 2E. 18

Posted: Sat Nov 24, 2018 11:12 pm
by Matthew Choi 2H
In total, there are 16 valence electrons. After drawing the skeletal structure for N2O with single bonds stemming from the central N to the other N and O, you are left with 12 valence electrons. The way I was taught in high school was to add the remaining electrons to the outer atoms to fill their octets first. If you do it this way, then you use up the remaining 12 valence electrons in completing the octet for the outer N and O. If you were to have remaining valence electrons, then you would add those to the central atom in the form of lone pairs, but since you don't have any left, then the central N wouldn't have a lone pair.