In N2O, nitrogen is the central atom and the oxygen atom is terminal. In HSCN, however, nitrogen is the terminal atom.
Draw four Lewis structures corresponding to HSCNwith C as the central atom,
HSCN with N as the central atom,
N2O with N as the central atom, and
N2O with O as the central atom.
Use formal charges for each of these four Lewis structures to explain why nitrogen is the central atom of N2O
but carbon is the central atom of HSCN
Match the items in the left column to the appropriate blanks in the sentences on the right.