Chapter 7, Problem 7.16A

Draw two possible electron-dot structures for the molecules with the following formulas. You may connect the atoms in different ways to draw the structures.(Hint: Look at the structure in Worked Example 7.8 for some common ways that second row atoms are connected.)
(a) ${\text{C}}_{\text{6}}{\text{H}}_{\text{7}}\text{N}$   (b) ${\text{C}}_{\text{2}}{\text{H}}_{\text{5}}{\text{O}}_{\text{2}}\text{N}$