Problem: Complete this molecular orbital diagram for CN– then determine the bond order. Note that the 1s orbital is not shown in this problem.

🤓 Based on our data, we think this question is relevant for Professor MacPhail's class at DUKE.

FREE Expert Solution
FREE Expert Solution

We’re being asked to complete the molecular orbital diagram of CN- and then determine the bond order.


To do so, we shall follow these steps:

Step 1: Calculate the total valence electrons present.
Step 2: Fill the molecular orbitals with electrons.

Step 3: Determine the bond order. 


Step 1: Calculate the total valence electrons present.

          Group             Valence Electrons
 C         4A                   1 x 4 e- = 4 e-
 N         5A                   1 x 5 e- = 5 e-

From -1 charge:                       +1 e-

 __________________________________
                                Total: 10 valence e-


Step 2Fill the molecular orbitals with electrons.

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Problem Details

Complete this molecular orbital diagram for CN then determine the bond order. Note that the 1s orbital is not shown in this problem.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Heteronuclear Diatomic Molecules concept. You can view video lessons to learn Heteronuclear Diatomic Molecules. Or if you need more Heteronuclear Diatomic Molecules practice, you can also practice Heteronuclear Diatomic Molecules practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor MacPhail's class at DUKE.