There are a total of 11 electrons in this structure. The more electronegative atom oxygen has 8 electrons in its outer shell while nitrogen has only 7 electrons in its outer shell. This extremely reactive free radical seeks to obtain another electron to fulfill the octet rule and become a lower energy species.
Nitric oxide has a linear molecular shape.
The electron pair geometry around both the oxygen and nitrogen atoms is trigonal planar . On the oxygen atom one group of electrons is represented by the double bond, the second group of electrons is represented by the unshared electron pair and the third group of electrons is also represented by the unshared electron pair. On the nitrogen atom one group of electrons is represented by the double bond, the second group of electrons is represented by the unshared electron pair and the third group of electrons is represented by the extra electron. This is the structural formula for nitric oxide. Nitric oxide has molecular polarity.