🤓 Based on our data, we think this question is relevant for Professor Luong's class at University of Manitoba.
Isoelectronic molecules/ions have an equal number of electrons. We can start by writing the Lewis structures of CO, CN- and N2.
Let’s calculate the number of valence electrons first.
Molecular nitrogen, carbon monoxide, and cyanide ion are isoelectronic. CO and CN − are toxic. What property may explain why N2 isn’t?